hey , thx a lot to you mate I finaly succeded at doin a few custom cut . btw may I ask why you cut the tape ? I tried without cutting it and I dont see any diffrence , also in your guide it is unclear if you do tape both side of the lens...
one of my favorites believe it or not comes from the 1$ store lol ( looks like Blue Iridium except its mostly green in the middle and lots of Purple at the end, I bought several cheap sunglasses to practice before doing the real thing on my Hi persimon Strike Lens , Well believe it or not I skipped 3 times on my first lens , and there is a few scuff on that lens, ( it went thru the tape) I guess I was a bit too excited to finaly cut some real Oakley lenses.
the second one is perfect ..
I did engrave 'custom ' on both 1$ lens and tho I am not good at this the tool was workin real great.
Also I used a 'unknown' 'abrasive' to polish the edge and they look very good with it , I will grab the one in the guide and see witch one does a better job but you might wanna take a look at usin this one cuz it did the trick for me .
anyways here are my picks