Cryx Bonejacks

Way back in high school I got the Cryx Starter box for Warmachine by Privateer Press. Back then all the minis were solid pewter!

I wasn't the best painter back then, but I was pleased them at the time, and I still think they look ok!

I remember not being able to use the bonejacks very well in games. I found them just too small to really be able to do any damage.

But that may simply have been the inexperience of youth. Do you guys know how to use Bonejacks well in Warmachine?