We do have a underclassmen walk-on snapper, but when you are trying to get recruited as a longsnapper it is rare that we get to target just one school. Longsnapper is a purely demand orientated position. Most schools these days don't go looking for a longsnapper unless they need one. What is working in your favor though is your size, your size will separate you from other snappers, which will make it easier for you to get noticed. My advice is continue improving at your offensive line positions, and keep working on your longsnapping. At the very least your longsnapping ability increases your stock as an offensive line recruit and size alone gives you a great deal of potential-based value. I would try to make a longsnapping competition, there is one run by ChrissailerKicking.com that takes place in January. There are a lot of D1 coaches who come and it is a perfect stage to showcase your longsnapping. Snapping a .72 on punts is great, Coaches look for a snap that is .80 or lower that it consistently hits within the framework of the punters body, they also look to see if you are able to get your head up and block somebody(some schools don't require their LS to block). Every year different schools are looking for longsnappers, unfortunately us longsnappers don't have as many choices as 4 and 5 star recruits. The good news is that when a team needs a longsnapper, they really need one.