RE: Arghhh...how much trouble did you have switching over?
Backed down the weight to 63 and adjusted the spring tension. Arrow flight looks great and am getting 3" groups @ 40 yards and stacking them inside that range....quite happy with that.
I thank you all for your input...also, a side note. I had one arrow pretty much implode around the fletchings while I was at full-draw. Talk about a scary moment...was the first time I had ever had such a thing happen. Luckily nothing was damaged...restrung the bow and all was fine.
Anyone else ever had a GT do that for no apparent reason?