Glad to hear collegevolleyballcoach.com helped in your Granddaughter's path into collegiate volleyball! The men's game is a different beast; beyond the physicality of the game, in the USA, there are more talented players than there are roster spots (much less scholarships). Too many sports fans believe that Title IX limits the growth/support of the Olympic Sports for male athletes, when it is a matter of the unreal funding put into football and men's basketball. I am also disappointed about the lack of collegiate opportunities for men's volleyball.
Please note that NCAA Division I Men's Volleyball (and there are a number of DII athletic departments which field men's volleyball teams, but they play up in DI conferences), only provides 4.5 scholarships; and the decision to budget 4.5 scholarships is up to the athletic department. Men's Volleyball is an Equivalency Sport, which means these 4.5 athletic scholarships can be divided among any number of players, and packaged with academic, merit and need based scholarships. Compare that to DI Women's Volleyball, which provides 12 scholarships, but is a Head Count sport where the NCAA says that only 12 'heads' can be on an athletic scholarship, and there is no packaging of non-athletic scholarship monies.
By your information, he may not (?) be physical enough to play NCAA DI as an opposite. If you look at the rosters of the California DI's, the OP players are tall (6'6"+++) and they jump out of the gym. Sure, there are examples of 'shorter' OP players being successful, but the men's game is now one of giants.
You are correct in believing he will have more opportunities as a 6'4+ lefty setter, than as an OP, provided he has talent. Many PSA's can set, but they are not a Setter. There is so much mental in setting (hitter decisions, staying within the parameters of the offense, applying what the coach wants, feeding the hot hitter, using poor hitters early to decoy, team leadership, emotional control, back row attack options versus front row, etc). Caution yourself from thinking that setting lessons and high school will develop him into a DI setting recruit.
I suggest that you talk to his high school coach, and/or club coach for a honest evaluation of his skills and potential within the OP or Setting position. Just lay it out, that you are trying to determine which position he is best suited to go to the next level at.
If he is going to be a setter, then he needs to go full tilt as a setter; run a team in club and in high school, additional skill development through lessons and camps. If he is going to be an OP, then he needs to go full tilt in that position; work on his vertical, work on his armswing, work on his blocking and defense; he needs to maximize all the skills within the OP position (because he can't control his growth). The sophomore year is the critical year for recruiting evaluations, and it is this year which he will/can make that good first impression.
Let me close by saying this; you know by reading the site that I am no great fan of college football but NCAA Division I Football offers 85 full scholarships and support which would make the Pope jealous.
Coach Matt Sonnichsen