Shooting to the right. Help me!

[Kamm1004]

So, I'm really working on my form, trying to follow the form clock, find my double anchor, feel back tension, and hold until I subconscienceously release. My first shot is 99% right on the money. This is great as the first shot is what counts and I usually practice one arrow at a time. HOWEVER, whenever I go to shoot groups even if its just for giggles, my second and sometimes third shot are to the right and usually perfectly parrallel to the first. IDK if this is worth worrying about or whats causing it, probably all mental. But, what do you experts think? Sometimes I know its due to bad release but somtimes not...

[andy nimmons]

they have told me that it is usually less back tension,assuming you are right handed

[njloco]

Make sure you aren't plucking the string, even a little will send it to the right, that is assuming your right handed.

[cbCrow]

If the other 2 answers don't help, there's only 2 things left; arrows are a little underspined or too much cant( if you cant)