Hello. I'm pretty much completely rebuilding my front suspension and am changing my front upper control arms from Original to Moog. I'm doing this change because I want to eliminate the potential of bent control arms. I'm also skipping the job of replacing ball joints and bushings on the cross shafts. Question. Moog uppers here are complete out the box minus the bump stops. I have the old but thought purchasing new would be best. Rockauto only offers this type of bumpmstop from energy suspension. Why would I choose red over black? Is there any squeezing problems or anything like that? My car will be having new hotchkis fronts with billsteins. Thanks.