high school sr playing in college league

It all depends on the team and the level of competition. Some of the better college summer teams will not allow this. At the PG summer league in NY, the league my son was scheduled to play last year before an injury, they allow a very limited amount to play (maybe 3-5 very top notch) and it is a very competitive league. 

I guess my answer would be if the competition is better then the 18U summer team he will play on and he will get playing time, why not. The one thing I would suggest is to keep your boys in separate locations if this is a league were they will live with a host family. Since all they know is living together, living apart would be a "growing" situation.

It all depends on his talent level and how much time he would see. Don't underestimate the grind summer college ball is, at the field nearly every day by 1-2 full college warm ups, BP etc. 5PM typical game times and not getting home until after 9. This limits his time for weight training working on mechanics, etc. Most HS kids going into college really need to hit the weight room hard and I personally think that a lesser schedule, more weight and conditioning is better suited for most HS players.

Now if he is projected to be a high draft pick and has the skills then maybe it makes sense. I have seen this in competitive California leagues, but most were potentially high draft picks who were physically developed.

He might be able to play and get some exposure to a team early in the season prior to the kids coming in from the D1 programs that are wrapping up their Regionals and CWS. My son actually got his first college "win" as a HS Soph filling in as a relief pitcher for a team that was waiting for some D1 kids to show up. It was a great experience for him and it really opened his eyes to the level of competition he would be facing in college. 

Thanks for the responses.  There are two summer leagues that 2013/2014 can go to.  I doubt very much that they are as strong as the Cape Cod or Cali.  One is only for freshman and sophomores, the other is in Atlanta. 

I was hoping for an experience that would "open his eyes: a bit , give him some good competition and mature a bit.  I think his talent level will be fine for either of these two leagues.  He is not a top draft pick,  if any pick at all he would be a late pick. 

He is a solid D1 , but not a early draft pick.

I agree the weight room and conditioning would be a great option as well. 

What about this idea, enrolling in a summer class or two and getting on campus for a summer term, working out and then pitching a game with the travel team maybe once a week to stay sharp...  Now that I think about it, playing HS spring ball and being an ace for that team is going to be a lot of innings, maybe a rest from pitching would be better.  Using the summer to condition and show up for the fall workouts and fall games on top of his game and in great arm shape, might be better than a grueling summer schedule. 

I think that is a wise approach, particularly if he is going to get a lot of innings and be the staff ace. It is worth checking into their early season needs and pick up a few games/innings before some of the other kids get there. It would give him the feel for college ball, but he will have plenty of time for that and it will be to his advantage to come in fresh and strong vs being burnt out and drained.

Good luck. 

let him enjoy his last summer and focus on conditioning and arm strength. start throwing 2 wks before school. enjoy your summer together. when he gets to school he will be ready to start  fall workouts and the rest will fall into place. went thru this with my 2012. happy to say he was able to get some quality innings , get placed in necbl league and grow up very fast. enjoy the ride