I switched pipes every time I switched environs. Only with a cumulative effect of 'things'...RB air striker, DF3, and probably other stuff I don't recall right now, did I end up sticking with the -rev profile on my 200. It has every bit of bottom end I had with the -35..and the kick of the -30 is just fun.
Re: '..helps out over stock' (rev on a 200).
Don't know about that...my concern was the bottom end of my -30 piped 200 SUCKED.
Now it don't.
You want that W-H-A-C-K sent any particular way? UPS, USPS, FedEx?

Does the popcorn icon mean you're anxiously awaiting...or just have lots better things to do?

13-50 would be way too tall for me. Yeah, at 12-47 first gear isn't a big player..but I use it around/over logs, getting out of places I shouldn't-a been. And I'm still good for almost 80mph...doing that in places I shouldn't, too.
But, I'm 93db when I do it! Oh..that's another thread......