Board Thread:General Discussion/@comment-67.167.141.92-20141015220752/@comment-26316965-20151123140133

73.22.80.176 wrote: Have yet to unlock 2-4, but 2-3 seems really good against rushes especially with other nearby towers. After the bloons are spat out, but before they get back to the track, they can be hit by other towers, acting as a support tower as well as doing good damage.

If its the one that cost 6000, then its not worth it. 3 1/2's are cheaper then getting a triple barrel. 2/4 however, apparently now its op in btd battles mobile cus it can stall all bloons, including blimps.