RE: paper tune???
I think you look pretty good from what I can see. I am guessing you use vanes. What little variations I can see in that picture could easily be caused by form problems that you will lose your mind trying to "tune" out.
I say move on to the next step and start shooting.
I don't really paper tune all that much either. I feel it is an ok way to start just to see if something is really off, but usually I can get things pretty close by eyeballing stuff when I set it up. If I do paper tune I don't drive myself crazy trying to get a perfect bullet hole anymore.
I would never shoot my bow thru paper once I start to fine tune it. If its shooting good I don't really want to know what it doing thru paper a few feet from my bow. Just more reasons to second guess yourself or your equipment.
The main reason I don't paper tune though is that too many other things can effect the outcome like grip and form. Of course they can effect any type tuning to some degree.
Paul