well i cheat. i first prepare area to be table to dop to(flat). i choose a dop about 40% of the size of my expected table then dop as close to center as possible with a cyno(crazy glue) and cure it. then build up a backing of dopping wax to act as extra support. the cyno weakens around 400 degrees. and wax melts lower. when i transfer i go directly to the wax. when cold(cooled) i hold dopped stone and dop in hand and heat the dop that was on table area. holding the stone i can tell if heat is building too much. one the table dop gets hot it will shear off some what easy and you can easily remove the support wax. the cyno hold stone good for no shift in position that would occur with straight wax to wax. for heat i use an alcohol lamp i’m including pictures of my dopping station and types of cyno and wax i use. cutting for 54 years and trying to get the best dopping method so far this seems to work best/great. i’ve tried all kinds of waxes etc. out there in these yrs and found a wax from ronsrocks(ebay) camarillo ca. item 142731467759 that has some good tackiness and holding power.