The problem I sometimes find is getting the gimmick to attach on your finger. If your working and your hands are a little sweaty/moist the gimmick wont attach as easily. So if your hands a bit like the above a quick rub against your trousers/jacket etc then I find your hands/finger is primed ready to attach. The other thing to be careful of is the positioning of when you do the move to them - trying to be as cryptic as I can. But in the centre is best for them as you get a perfect 'x' then if you do it more in the side etc.

I've been using DS sticky tape and it's perfect. I have another sharpie lid on that end to keep it clean and remove just before performing.

Wow - DS tape, never would have thought of that and may give that a go. Do you just use that to replace the p**** or put a layer over the p****?
Thanks

Bin the pxxxy and replace with DSST. Works a treat. Had the same piece on now for 6 months.