Spacer on top of bilstein 5100's lift

alright i have the billys 5100's all the way around, the front is cranked all the way up for the 2.5 lfit, i have a 2.5 inch spacer lift, and was think why not toss it on top of it for 5 inch lift in front, is this a smart idea? i do alot of desert runnning and climbing, do i need to worry about flipping or anything? just a little concerned that if i have 5 inch lift in the front and just the rear tsb and the 5100's in the back then ill flip alot easier. thanks it advance

EDDITT**just found out the answer, really really glad i didnt try that