Titanium Goat got back to me a few days ago.
"Your poles were some of the first that we produced. A couple of folks had issues with the grips slipping, even though we were using the 'recommended glue' for the grips.
We have since switched over to using epoxy to fasten the grips. Can you completely remove the grips? If so, use a high grade (we like Duro brand) slow set metal epoxy. The slow set will give you plenty of time to put the grips on without fighting cure time.
Heat the grips up with something like a hair dryer so that they're nice and flexible. Mix enough epoxy to cover about 1/2 of the upper area of the shaft where the grip goes. Press them on using a slight twisting motion until the end of the grip is approx. 1/6" -1/8" from the end of the shaft… so that the shaft is slightly recessed in the grip. Let them set about 10-15 minutes and check that positioning hasn't changed.
If you can't get the grips all the way off w/o destroying them let me know and we'll send you a new pair of grips. If it all sound like too much trouble to go through, send them back and we'll put new grips on for you."
They also said they wouldn't recommend the golf grip tape.
I'd like to add that these poles are awesome, and I really did have one of the first few pairs of poles. I wouldn't let my issue affect anyone's decision to buy AGPs. Do it; you'll love them!