Escef, on 21 January 2016 - 06:27 PM, said:
XL works well enough in the Whammie. The general wisdom that applies to all heavy and assault mechs with XL engines is go for a big one, because the additional speed will buy you about as much survivability as the XL vulnerability costs you. (There are, of course, some mechs where even a big XL is at best a questionable choice, such as the Stalker, Awesome, Atlas, Banshee, or anything else relatively slow and shaped like a wall.) I've personally used 325XLs in Whammies to good effect, and would not recommend using a lower rated engine than that if you intend to XL.
I find the xl295 is the sweetspot for the Warhammer. Just enough speed to get around and spread dmg, and the most tonnage for firepower. If you can kill the other mech before he kills you, its always worth it )