I really wish Livin Lite was still making the 7x16. I think that's the fair compromise between the 7x18 and 6x15. As I can't find any information about that model on the net, it's hard to know if the bathroom on the 7x16 is any bigger than a 6x15. For my needs a 7x18 will work ok, I just want a small footprint. At 5'11" and 215 lbs, I'm not huge but not small either. As noted above, I'm expecting to wind up in a 7x18. And while a 6x18 would work, I'm figuring that if I'm going to 18', why not add the extra foot of width?