Film applied from the first blow without persistent bubbles if you take care to eliminate dust during installation.
Cutting is my very good sense because it leaves you with a small margin of error very appreciable saving you the repositioning.
If you see bubbles, make sure they are not produced by dust, and if that's the case let your phone quiet 4 hours, it will eventually go away on its own.
I use them for all our products membranes phones and each time I am amazed by the quality offered in relation to such a ridiculous price
Product to buy eyes closed