MEM-TEK modified my ZR4s today, too. Unfreakingbelievable performance!!!
I got the 9500ci primarily for additional radar protection, and had relegated my ZR4s to backup duty after relatively poor testing compared to stock LIs. MEM-TEKs mods have changed all that - against the TruSpeed and PLIII I was JTG with modified ZR4s only. What makes this especially interesting is that my ZR4s are at the corners of my vehicle and we couldn't get punchthroughs with corner or center mass shots.
I can't wait to see how they perform against the Laser Surgeon (aka Rsatmans) at the next Atlanta Jammerfest, but I feel the MEM-TEK modified ZR4s are at least as good as LIs at this point.
MEM-TEK - I can't thank you enough for coming down and doing this for me. You're the man!!! Hope you made it home safe.