Long discussion with some lacrosse in the know people. Conclusion, Even tho son born in Oct and on age, Best recommendation is to hold him back now, not 8th grade , if he intends to go D1 . They said it is a no brainer. Hold him back or suffer later. Give him confidence plus he will get lots of playing time. He is starter now, but that shouldn't matter . He will be a great player next year. His grades are good now. My conclusion is to Hold him back and give him that edge. It seems like it is the way now with top players.