You could try adjusting your button so that it is weaker (screw out or lighter spring). It sounds like the arrow spine isn't compatible with the poundage. There are so many things that could effect it like plucking the stringThanks for the replies and suggestions. I couldn't get on AI these last few days, just couldn't get it to work.
I am right hander. Right eye retina is damaged so am now left eye dominant.
I have a string pic, string runs down the inside of the riser, sight pin to left of string.
I wouldn't know how to adjust a pressure button correctly, but the shop charged me £44 to do it so I'd hope they did it right. (Although if the way they fletch arrows is an indicator they may have cocked it up) I push it gently with my thumb every 5 or 6 goes to be sure it isn't stuck. Centre shot is set just left of centre as far as I can tell. I don't know what coaches eye is, will look it up.
I have now got my group (8 arrows) size at 25m down to roughly 90mm.
The problem persists though, everything is to left of where the sight pin says it should be.
I'll check my nock height tomorrow, I've misplaced my gauge and it needs finding.
All the arrows are entering the target at an angle, if you imagine looking down from the top of the target all the arrows are pointing "towards 2 o'clock". They look like you'd expect if I was shooting from about 20m left of centre!! Only I'm not, I'm shooting from dead centre.
I'm not in a club yet so can't get a coach to help. I have lost fletchings at the target as arrows hit other arrows, but nothing has come off near where I stand.
There are plastic streaks on the riser from fletchings but they're from when I shoot barebow. With the longrod on I get no indication that arrows are striking riser.
Something on the bow does rattle like a sod every shot though but for the life of me I can't track down what it is.