If I remember correctly, NCAA said that you must (or maybe should) go for help.
Once again, if I EVER work with anyone on this page, and I get asked to check a swing with my partner (as long as it doesnt come so late as to disadvantage the batter, ex. check swing on strike three past ball and the catcher asks about the swing after he goes and gets the ball). And when I ask you sure as heck better give me what you got... I dont have an issue if you change the call. Like I said, what could happen? I get another strike?
Nolan, I implore you to give this some thought. Dont sell yourself short and allow yourself to get as many strikes as you can.
What happens if there is a check swing and your partner is in C... the pitch is up and in and the catcher (this being LL and all) comes up and gets in your way.
Now lets say that this swing take the bat all the way in front of the batter's body but when the catcher clears your vision the bat is back infront of his chest... or worse pointed at the plate as part of his backswing.
Now the DHC wants you to check the swing, since you called the pitch a ball and got blocked out on what was a swing. You now refuse to grant the appeal to your partner. You have now lost a strike (possibly one that could lead to a big inning for the offense), your partner is wondering why you didnt come and ask cause he knows you got blocked out, and the DHC is now pissed at you cause you just "stole" a strike from them.
Think about it and I think you might just see our side of this and maybe decide to give it a try.