Davo Easy Mounts A Question

I have been happy using these but my understanding is that they re supposed to be 'movable'. They are advertised as if a user can reuse them or at least move them to adjust their placement once contact is made with the album page. I am not finding that. once they re down, they're down. They hold like iron.

Maybe it's something i'm doing wrong but I don't see now it could be. Any feedback on these?

Not aufait with "Easy mounts", I do use Davo, and any other "open top" mount, (cut showguards in half) I use a thin sliver of acid free double sided tape, one can position, rotate, move, to desirable location, then press. Fixed.
Lightness of hand is beneficial.
Acknowledgement to Postmaster GS, for suggestion.

I'm not a fan of the double-sided tape used on mounts. Even as thin as it is, over time, it leaves an impression. The more filled the album, the more likely it is to leave an impression.