I've had very good results of 2P-10 (thin, medium, and thick viscosities). The glue resists going off in the bottle (a problem I encounter consistently with Hot Stuff - though I'm sure somehow I was causing it).
I recently picked up a bottle of Nexabond 2500 and have used it for several projects, but I don't think I've used it for pens yet.
I've used Stickfast's finish with good results. I recently acquired some of their glue but haven't used it yet.
I refuse to use Gorilla's CA glue after having 2 bottles (out of the 4 or 5 I tried) fail to set up. I tried accelerators, waiting significantly longer than CA should ever require...those bottles just wouldn't set up.