BTW, I'm just putting the final touches on a Viper Mk3 I've built with the CG power plant. Having power galore is nice, but there really are limits to what you can do with that class 3 PD. Might actually try and build a Weapon-focussed one.
Tried
2 SRB PAs --> immediate heat problems (melting your modules)
2 OC PAs --> needs 4 Pips to WEP to even fire both
Gonna try mixing in one Eff and see how that goes, or a WEP PD.
Otherwise, back to the drawing board. :/