I also smear a lil on the taper. I dont like heating it to the point of bubbling though. I kinda wonder if it doesnt make it more brittle? Atleast in the cold. Also it tends to push a bit more out then I'd like.
Also no real need to clean the grease anymore on the PDPS.
Basically make a swipe or two on the taper with a softened holt melt stick.
Take your field point, heat it up, you'll see the oil sheen burn off if you watch close enough. I hold it on rotating for a couple seconds past and on she goes. It's pretty rare one comes off anymore. I believe good tapers is a big factor, and not overheating it.
You'll get the feel for how much glue to use and how much heat with practice. My goal is to not have any come out at all, or just a tad. If some comes out, take a tshirt and wipe towards the point, or let it cool slightly and just peel it off, but dont wait for it to get cold. Ya heat it up to much it'll want to pop off, where some cold water comes handy.
Broadheads are no different. The trick to bh alignment is getting a GOOD taper and next, making sure it's seated. Not to much glue and not to little. To much glue and it'll float on the taper.