Well chit. Been using GT carbons since 2002 and put inserts in w hot gun glue. Works great. Am careful about heating tip w insert attached, (propane torch). Glue that and then slide into shaft ( tip and insert assembly held by pliers ).
Have done it hundreds of times, even remove and replace. Think I damaged one. One.
New batch of lower end GTs, damaged 3 out of 6. Scrapped em all, tossed my 100gr brass inserts in trash too. Not worth my time to remove adhesive.
Must have gotten a less than ideal batch.
Switch to that cheap Walmart 2 part 15 min epoxy. I've used it and never had an insert come out with it. I do clean the inside of the shaft with a Q tip dipped in acetone or high percentage alcohol.
