Scrounge, I went back and re-read your post and that made a lot of sense (and maven and HL as well). I see what you are saying and generally agree. However, we all, from time to time, see players numbered 50-79 legally lined up on the end of line.
Surehands, back to your OP. Did we answer your question? "
Can the center be eligible for a pass on the swing gate if he has the correct number and is the end player on one end of the line? Where is this covered in High School rulebook?"
According to 7-2-5b I would say yes he is eligible
as long as...
1. snapper has an eligible number and is on the end of the line...and...
2. it is done on
4th down or a try ...and...
3. its
not done on 1st, second or 3rd down...and...
4. the snapper is not replacing one of the #50-79 guys.
(But, we have all seen #50-79 guys legally line up on the end of the line and..the clincher...it may be hard to convince a coach that the opppents normal snapper is not usually a #50-79 guy who was replaced by #22 who caught the pass and scored the winning point(s)). 
I am truly not trying to be difficult
Just seems like they could clarify and simplify this one a little more.
