If you don't use that math, then your save/load code is going to be at least 30% bigger and could be as much as 2x bigger :\.
I think that you should just put in the extra effort for a higher quality map =).
But w/e, I tried ^)^.
I introduced you to the different tools out there and linked you to a tutorial that covers how save/load is properly done. I can't do much more than that ^)^, so at this point if you still want to do the same technique used in most save/load systems, w/e ;D. Go for it ^^