After listening on that Myspace link, the bass is much more "there" on the vinyl version of the album. None of that heavy, heavy bottom on the Myspace cuts so it sounds a lot cleaner and more modern.
I like the record version more even if I have a rather nasty skip right after "You know I'm crazy but I ain't real dumb."
Speaking of PERRO, I found a torrent with two hours of outtakes from PERRO sessions that's great for getting a look at some early versions of songs and some good jams containing:
1/2/71
01. Mountain #5
02. Is it Really Monday
03. You Sit There /incomplete
04. You Sit There
05. Garcia's Tune (Loser)
06. Garcia's Tune (Loser)
07. Wayfaring Stranger *
1/3/71
08. Mountain #1 /ACCs/
-- wound Heads -- Garcia, Crosby, Kantner, Grace, Lesh
09. Mountain #2 /ACC's/ Little Slower
10. Mountain #3 /ACC's/ ** Organized (different mix of above take)
11. Mountain #4 Complete Set Of changes; Long Voiceless Jam
1/14/71
12. Leather Winged Bat /Slower/
13. Electric Bat
14. Jam #10
15. Wall Song - Electric 12/13/70 **
16. Wall Song - Acoustic - solo demo
1/11/71
17. Rounds (EEP Hour)
18. Dope Rap w/Piano /"Funny"/
19. Jam Slide II good parts 11/04/70
20. Jam R&B Riff /Long/
21. Jam After Electric Bat 1/14/71
abrupt end (two track runs out)