https://www.24hourcampfire.com/ubbthreads/ubbthreads.php/topics/11185344/FS:_Tarptent_Protrail#Post11185344

Side entry doors will ruin a guy.

I actually prefer the front entry, but doubleish wall and more gear space gave the notch a win for me.

You're the first person I've ever met who prefers a front entry.

I have very little flexibility in my hamstrings, been like that my whole life. Sucks to get in little tents, but made me a pretty decent distance runner. I just find it easier to back into a front entry then try and fold into a side. I also still have the Rainshadow 2 when weight isn't as big a factor.

Wow, that's interesting. Makes perfect sense. Good news is front entries can generally be made lighter (like the Protrail).