From my experience playing, (many many years ago), at the D2 level, and as a part of my son's recruiting process, not all JV/reserves are created equally and for good reason. Some coaches with no reserves my son spoke to said he would come in and most likely not get many minutes his freshman year, but thought his IQ and skills were good, just needed to improve speed and put on some size which would help on their lifting programs. Others said, we have a reserve team, and would have you play there year 1, so you could continue to develop, and get competitive minutes, and train with the 1st team and get called up if/when your performances are good and you are needed. Other coaches, had a reserve team, didn't mention it and we know from families whose son's went to these schools they were either placed on that team from the get go, or just sat on the end of the bench and never played. I think each school, each coach and program ... and more importantly each kid is different so I think making sure to ask a lot of questions and get clarity from a coach is really important.