I finally got to test the LI and ZR4 installation on the Vette tonight. I was very surprised at how well the ZR4's did against my PL III. The LI's were obviously JTFG but the ZR4's were JTG also. I did get some rear punchthroughs when targeting the tail lights, but JFG when only targeting the plate.
Granted it was only one gun and an easy gun to jam, but this might be the most popular gun in GA.
Again very pleased with the results, I thought for sure I would get PT's on the headlights but did not. The ZR4's will make a very adequate backup should I have problems with the LI.