I have been shooting GT for the last couple of years and also have had no problems with them. Great shooting arrows.
I shoot mostly Easton ACC, but I also have shot GT's in the past with no issues...I still shoot the GT velocity with one set up..gold tip are great arrows never seen one "warp".
My Mission Ballistic, 57.9#@28", loves the Victory VAP V3, 350 spine with the arrow cut to 29" from the groove in the nock to the cut in the carbon. They fly like darts, weigh 392 gr with a 100 gr point and group very well. Bill
Carbon express maxima red, either the 250 or 350. Both tune perfectly. If you go the blue streak route, 350 only.