The techs that I know on this track, are a lot and there are many different ways to make a good time (everyone of you know them, I just want to remaind them).
Course:Former tech (used by Thomas60 on 1'57''32 vid) - The total is about 1'57''XX
1st lap: first SC and second SC (no last hairpin SC)
2nd lap: Same as 1st lap
3rd lap: MegaSC
Another tech (I don't know how to call it
) - The total is about 1'55''XX or 1'54''XX
First SC, second SC and last hairpin SC in all laps
MegaSC in course tech (you'll see in 1'52''77 vid by Oxide the best)
1st lap: first SC, second SC and last hairpin SC
2nd lap: first SC, second SC but no last SC
3rd lap: MegaSC (which lap is about 34''0X or 34''1X)
Hardest tech (about 1'50''XX If you do it perfectly)
1st lap: first SC, second SC and no last SC with reserves for Sacred Fire
2nd lap: MegaSC with Sam's tech (so hard, but possible)
3rd lap: Starting with Sacred Fire, and all three shortcuts.
Lap: (MegaSC in all of them, except in SL)
Starting Lap (SL) - As in "MegaSC in course tech"
Sacred Fire Lap - Reserves for Sacred Fire gained on all first lap
Saffi Fire Lap - You can get Saffi by the easiest way: boosting as much as you can on the first lap
BTF Lap - Everything as "Saffi Fire Lap", but you need to take CortexShark's SC (lap about 29''XX done perfectly)
Stelzig tech (It's possible??)
All lap with USF:
1st lap: Get Saffi Fire
2nd lap: Get USF and keep it up to the last lap by avoiding the Turbo Pad and without crashing on the last hairpin
3rd lap: Take MegaSC with all known techs...
My tech (I don't know If is possible)
You need to do this:
1st lap: Get Saffi Fire
2nd lap: It doesn't matter If you don't make all techs perfectly, the important here is to take MegaSC
3rd lap (this is the good): Start the lap from the MegaSC (hope that with Saffi Fire, a little Speed Ghost is possible in the beginning, so 31''9X will be possible)
Hope that this would be useful for you