VTA makes a big difference for me - though stylus profile type has a bearing on sensitivity to optimum groove contact.
It makes no sense either using 180gm vinyl for eg, I just picked a selection of the most played records and went for the common average as a reference.
As for felt mats sticking to records, my TT has a neat trick which involves pushing a tiny rubber ring onto the centre spindle, and the mat is recessed in the middle keeping it away from the record label section: it may or may not be adaptable for standard diameter spindles, and you may run into a problem with distorting normal felt mats, additionally the platter has to be recessed for this idea to work.
mat