I’d really like to know this as well. Mine finally came today and I just couldn’t get them to come out not crooked and bubble-free and I don’t consider myself a novice at such things either.
The fact that you have to solely rely on stickers on one side of the screen for alignment (which leaves some wiggle room), then pull the protector horizontally across the screen (which is a longer way than vertically and therefore more likely not to come out straight) and essentially can’t lift the protector back up to realign because unless you do it in a perfect vacuum, everything afloat in the air will stick to the adhesive (I did it in the bathroom, still had to try and get stuff off with their dust remover), really make this a nearly impossible task in my view.
The protector itself looked great, but I don’t know if I’ll order another pair…