Some Help With Tint?

[R_Rambo]

so ive been trying to tint my windows myself and so far it has gone fairly smooth ive gotten all the windows done except the back, which i tried and totally failed. im just wondering if any of you guys have experience with doing tint and could provide some tips or insight on this before i go out and try round two with it. when doing it the first time i placed it on the outside of the back window and heated it to create the curve but while doing this i couldnt get all of the pockets out and ended up melting some of the tint on the edge because i was getting frustrated lol. any tips appreciated though