RE: Shameless solicitation for recurve lessons.
Lilhunter:
Very good analysis and recommendations.
I was about to wade in last night and say that I was suspicious of the shaft size. I was going to recommend he try 2016's, 2018's or even the old standby, 2117's. In addition, I am not an advocate of 4" fletch for recurves. I know that many stick shooters do fine with 4" fletch, but when a shooter is still struggling with setup and form on a recurve, I strongly suggest no less than a 5" fletch.
As you stated, he also might benefit from some type of "pressure point" on the shaft, preferably and adjustable cushion. Although he states that his bow is "center shot," his shooting off the shelf puts the shaft against the riser, and IMO he will still experience a bit of "paradox."
Because his shafts might be wrapping around the riser somewhat, I believe you are spot on that the 2213's might be too stiff. I know that it is controversial among stick shooters, but I believe that when there is a "paradox" issue, regardless how minimum, a more flexible shaft with 5" fletch (greater and faster stabilizing) may be the best setup for some shooters.
I also believe he should try a "glove" to shoot with. Some shooters cannot shooter well with a "tab" because they have a problem of getting too much finger around the string and they cannot get a clean release. I am one of those. If I use a tab, everything goes to hell in a hand-basket.
Last, if he is not using a "wrist strap," I suggest that he do so until is has conditioned himself not to too tightly grip the bow, or grab the bow riser after the shot. Today's recurves with fast limbs and fast-flight type strings do have the tendency to want to jump out of your bow hand.