Same for me this morning. I just got a doz. GT 7595's in the mail yesterday and shot one bare full length this morning with a 175 gr field pt. Centered it looking at nothing but nock at 12 yards, so I moved back and same thing, except low, at 18 yards, bare.
What I'd done was tweaked and nipped at a doz 5575s down to with 3/4 inch of the riser but I had to go clear down to 125 gr. to get them to nock decently. Still a tad left but OK with four fletch.
But I want to shoot a 175 gr. BH so that drove me to the stiffer shafts.
Ran out of feathers tho, so I just ordered 100 barred Tru-Flites out of 3R... go team go!
It's going to take a little while to get used to the new trajectory but I really like how the heavier arrows "feel." Well, shafts. They're not arrows yet.