had a couple donors and just went for it today. 24k polar for desert tan R1 Emerald polar for rootbeer PB1 done in my dads garage! R1 was linegear premium red to start The results! the r1 was my learner and it was humbling. Difficult shape and fit to say the least. Couple tiny gaps but otherwise good and got the polarized etching in there too. The Pb1 is perfect with polarized etching and all!