dynavector XX2MK2 set up question

on vpi classic, do you set up with or without the mat on the table,
on without mat said 2.2g with the mat on it measure over 2.2 i think about 2.4g
and bass is too heavy, with the mat i set it 2.1g , bass is just nice , just right weight, play on 120 to 180g so far so good. any suggestion.
My phono on 40ohms. have not try moving higher yet.