In case anyone is interested, I found the speedrun guide right before 3.0 came out:
http://www.supercheats.com/pc/walkthroughs/finalfantasyvii-walkthrough01.txt
That ^ used to be on gamefaqs, but has updated to v3.3
They're all glitchfree, as garland likes it that way. Idk why, but I find outdated strategies intriguing :p Idk, just sometimes the new strats take away some other things about the game. Like worrying about how enemies fight. In the new strategies, you don't need to worry about that anymore. Which is a downside I think..
If anyone is planning on doing a tas with those strats, all I ask is that you do manipulate luck. The demons gate battle should be done without barrier as well. It is possible without barrier with those strats, as he has done it, but too complicated to write a strategy for.. I can already imagine the luck required. I even have the 1.0 speedrun guide by garland. He didn't know about magic hammer. And schizo was a very hard battle without it. Jenova death in that version really sucked badly..
I also know the strategy used as J-death RIGHT before the powersoul discussion happened. The strategies RIGHT before the powersoul was found were the "wargong tactics". I only know the ones for jenova death, but not for schizo. I can figure it out though on my own. They managed to beat schizo in less than 3 minutes without the powersoul. There was a video on it, but its gone..