Can we be honest about lifting?

I have been doing Gel extensions for a few months now and in the beginning I had a lot of lifting problems. My current set I finally tried the recommended method of leaving a gap and blending with the drill and acetone. This seems to have worked very well and 9 of my nails are still perfectly intact. My middle finger on my dominant hand is lifting if I put pressure on the tip and I can’t help but feel that this is due to different activities I do that put more pressure on it rather than bad application.

So does anyone who has been doing it for a long time do you have this problem with a certain nail?