https://www.speedrun.com/p2sm

had to leave my game paused for half hour at beginning of conversion intro, so the realtime splits say over two hours, but gametime splits show 1:38:xx

This video demonstrates the movement technique known as "dog-hopping". It is not nearly as useful as "bunny-hopping", but it's the best I have to offer at this time.

3/25 chambers with the funnels, yes.

How about a No Crouch Funnel Fly Glitch category? Not looking for completely glitchless category, would just like to get rid of that one that lets you float to the exit without bothering with gravity.

That link shows the list of commands, but instructions with example commands would be helpful, and I did not find much when I was trying to do this a few days ago.

Here are some commands I came up with to customize my ihud:

sar_ihud 1
sar_ihud_y 800
sar_ihud_x 375
sar_ihud_modify forward   y=0 x=4 text=^
sar_ihud_modify back      y=1 x=4 text=v
sar_ihud_modify moveleft  y=3 x=4 text=<-
sar_ihud_modify moveright y=3 x=5 text=->
sar_ihud_modify jump      y=0 x=1 width=2
sar_ihud_modify duck      y=1 x=2
sar_ihud_modify use       y=0 x=0
sar_ihud_modify attack    y=0 x=6
sar_ihud_modify attack2   y=0 x=7
sar_ihud_modify angles    y=1 x=6 enabled=1 font=-5 width=2 height=2

Hope this helps.

Livesplit works in Linux under wine, or you can compile LivesplitOne. I've gotten both working in Debian 10 and 11. What does not work is the autosplitter functionality, so you'd have to use a hotkey to trigger the splits. If anyone has figured out how to make Livesplit work with autosplitter under Linux, I'd love to know. I haven't had to run a Windows machine in about a decade, but I had to build one last month when I decided to speedrun Portal Reloaded. I spent a good couple weeks trying to get Livesplit to talk to SAR in Linux, no luck here.