We have had this discussion many times but it is always worthwhile. What good is tee exit velocity? It shows POTENTIAL nothing else. So if your exit velocity is 68 you are finished. Unless you could literally hit a line drive 100% of the time and have it drop in front of or to the side of outfielders its over for you. You simply do not have what it takes to hit college pitching. Here is what people forget, it is not all about distance the ball can travel. It is about reaction time as well. The slower your bat speed the sooner you have to start your swing. At the college level you will get fooled too often and have already committed to your swing cause you have to start early. The 100 EV guy can wait longer and read the pitch more. This does not guarantee success to the 100 guy but he has a chance. He has the potential to hit college pitching. The 68 guy has zero chance. Even if the 68 guy is a 'better hitter' than the 100 guy in high school the 100 guy has a better chance of hitting in college. Now these are two extreme examples. Where do they actually draw the line? Seems like 85 or so is the rock bottom for D1 and that is only for guys with something else special, speed, slick fielding etc. They are the exceptions. 90 seems to be the baseline otherwise. For corner guys its more like upper 90's. Is there an exit velo that guarantees you someone will take you as a project? Don't know. Most 100+ guys are good hitters.