Wow - I admire your worksmanship. I just scuff 'er up, put the glue on and wait til it gets tacky, then slap a patch on and hold it there for a minute, put the flippin' thing back in the tire, mount it and pump it up. I always figured the tire pressure will hold the patch to the tube . Well, it's worked for me so far. I'll run some tests and see if your method seems better. I am sure your method is more reliable, but mine awfully quick.