Genesis Thunder Blast

Genesis Thunder Blast Review and Play Test

String: Genesis Thunder Blast (16g)
Construction: Multifilament
Racket Used: Babolat Aero Pro Drive
Tension: 57 lbs (about 27 kg)
Previous String in Frame: Genesis Xplosion
Cost: $10 a set
Strung Date: May 22nd
Strings Broke: May 31st

Thunder Blast – What You Need to Know
Thunder Blast is a multifilament from Genesis. The string is very similar to Gamma’s TNT2; even down to the price. The string has a slightly different coating that at least in my opinion allows you to generate a little more spin. Obviously, like with all strings, that coating wears down with time (or the strings will break as in my case).

I think what’s actually more useful is to compare Thunder Blast to another Genesis multi I recently reviewed; Xplosion. For most players multifilament strings make the most sense so it’s worth comparing these two strings because they are very different.

Thunder Blast is a softer string that’s inherently more powerful but also less durable. It would be great for doubles players who spend a lot of time at the net as the feel on serves and volleys is very crisp and comfortable. Conversely, I’d say Xplosion is a great choice for doubles players who spend the majority of their time at the baseline hitting groundstrokes. If you have any kind of arm trouble I would recommend trying Thunder Blast first and seeing if you have any kind of pain. If you don’t you could try Xplosion (more durable) if you do you’d need to go with a very soft multi/synthetic or natural gut.

For anyone who hits primarily groundstrokes and generates a lot of topspin this string will get you into trouble quick. Less spin potential than Xplosion and the strings move around A LOT if you hit with topspin… to the point where you need to move the main strings back into place after every point.

This is a good full bed string for players with arm issues and/or doubles players who play serve and volley/look to get to the net.

This would make a great cross string in a lot of hybrid setups. That’s how I imagine using/recommending this string in the majority of cases. The one potential downside is durability. If you are a frequent string breaker you’ll need to use a more durable multifilament or natural gut if you are breaking this string within a couple of weeks.

Thunder Blast– What I Loved
As cliché as it sounds I loved the power of Thunder Blast. Great feel on serves and volleys and in all honesty the feel on groundstrokes was good too. I had nothing to complain about for the first few hours using the string. Obviously this isn’t a “spin friendly” string but I didn’t have problems getting the top spin I needed to keep the ball in the court.

Thunder Blast – What I Hated
After the first few hours of hitting with spin from the baseline Thunder Blast really dropped off. It broke in a week and the strings started moving like crazy (mostly the mains). The crosses moved a little as well but nowhere near as annoying and obvious as the mains. This has to do with the snapback potential of the string (when striking the ball does the string return to it’s starting position), which in this case leaves something to be desired. It’s worth pointing out that the string is not designed for players who consistently hit with heavy topspin. So for most players I’d probably only be recommending this string as the cross in a hybrid job.

One other thing that was a little odd to me was that it took some time for the string to settle in (the best analogy I can think of is breaking in shoes). It was kind of stiff at the start but that may have to do with how fast I used this racket after stringing. In all honesty it wasn’t a big deal but if you have some arm problems just note that you may need to step on the strings to loosen them up a bit at the start.

Genesis is typically a great bargain but in this case I’d say you’re paying the average for this type of string. It costs you about the same as other strings in this family (TNT2 is $10 as well).

Who this string IS for
Definitely doubles players who spend a lot of time at the net. The string is inherently powerful and the feel on serve and volley is superb. That makes for a winning combination if you’re looking to do damage with the serve and put away the subsequent volley.

This string would also work well as a cross string for any kind of hybrid job where you put a polyester or durable (spin generating) multi in for the mains.

Who this string is NOT for
Singles players who hit with a lot of topspin. The string can generate spin but you don’t get the snapback associated with a polyester. If you do hit with a lot of topspin the string wears down quick and the mains move like crazy.

Final Verdict
With most players opting to go with hybrid string job these days you’re more likely to use Thunder Blast as a cross string. It’s a powerful string that retains tension well and is certainly more durable than a synthetic. In terms of full bed usage I really only see Thunder Blast as a viable option for players with arm issues, players who hit very flat from the ground, and/or doubles players who spend most of their time at the net.