Thanks, both of you, but as I said, I don't want to "spoil" the solution for myself; I feel that would take away the fun and satisfaction from the challenge. I don't mind asking for help with glitches as I'm new to doing Sonic challenges, and having to find the glitches for myself seems like it might be too much, but I still want to work out for myself how to implement them to find a route.
I'll take a look at SL1 first, in that case :)