Hi guys. I want to start a DIY project on my Glock 21. The thing is I have a few questions that I can't find on the net. 1. I see people using Dura-Coat for grip texturing. Can I use a different brand & if so what else you give me an aggressive feel? 2. Can I stipple epoxy? I haven't seen anybody doing this. Is it possible. 3. Where can I get the 50 min epoxy or will 30 min work? 30 min is the only one I have found around my parts 4. What works better Dura-Coat, Herculiner or Dura-Coat Armorer? 5. Whats the difference between spray on and sponge or brush on? Will there be a different texture even if it's the same product but different application. 6. I have the quarter, .5 inch & 1" tape, files & sand paper (220, 320, 600, 1000 & 2000). What else will I be needing besides this and the epoxy & play-do. I haven't gotten them yet. 7. Will this be possible in a day? 8. What size drill bit would I need to make the hole on the frame? 9. If I can stipple the epoxy can I spray, brush or sponge on (dura-coat, herculiner or what ever else is out there) and then stipple on top of that for some areas? 10. Out of all the gripping coats used and available out there, what are them and a list if possible from smooth-mild-aggressive. Thanks for all yuor help on this guys. It will be very much appreciated.