Sorry, I missed the strike plate sentence in your first post. I'd still try a stick on rest , they are only a few dollars, and they really clean up a lot of human error. It could help tell you if it's really your arrows or something your doing. Then you could take it off later if you decide to try off the shelf again.

I'd use 145 gr heads.

did you use the 3 Rivers spine selector with bare shaft punch in at the end
you will noticed that if you punch 3, 4 inches feathers and then check the result
and after punch bare shaft and check the result
the arrow length is not the same
the arrow with feathers is longer since the feathers stiffen the arrow...

maybe that is your issue

Greg's I think u were right I experimented some today took full length 2016s shot bare shaft seemed like the more weight I added the better they flew was nailing bullseye with 200 grain head sticking straight in even 250 shot well I only have 4 full length shafts the rest I cut to 29 inches the 29 inch fletched flew good with 250 grains I think the 1916s would be better not sure what to do now took the wood out from behind riser now just flat Velcro haven't touched bra eh eight yet anyone got some 1916s for cheap?

Hey Tim, where are you located. There are a lot of stick shooters in Maine and I am sure someone must live close enough to help you out.

Aroostook county houlton

I don't have much to add to what has been said.

I shoot pretty much your set up and my 2016's fly well.

When you bare shaft do they group with your fletched arrows?
I have better results bare shaft testing versus my observing the nock left or right, thou you said some were almost sideways.

If I couldn't get the 2016's flying correctly I would first try 1916's over 2018's.

Good luck.  And make sure your nock isn't to tight if you haven't done that yet.

I would go with 1916's over 2018's shooting 45#'s.

What about 2013

So I think my nock was low I raised it to 5/8 and I was under drawing had my left elbow bent when I straighten it all the way the arrows fly good with 125 grains but I'm really inaccurate and when I tilt the bow I get string slap never have gotten that before I'm morpe comfortable drawing with my elbow bent a little is that a bad habit?