AmoebaUK | NTSC Construction consistent 46 strat @AmoebaUK | Uploaded September 2018 | Updated October 2024, 23 hours ago.
Basic idea:

Hold up until just before the end of the platform, up-left until you hit the button, adjust to land as normal. Place the ball as far left on the first wall as you can, hold up into the path as it roates up. Once the camera starts to shift sidewards, roll along the length of the pink wall, bounce into the goal.

Points to note:
The starting part of this is super consistent, and can be used on the standard 45 strat if you want consistent button hits (the window for switching from U to UL is 6 frames)
I start holding up into the wall at around the 52 second mark, but that's likely super lenient too.
When you're holding up, angle it ever so slightly right, so that the camera swings around to the left and not to the right.
Avoid the wall on the final bounce at all costs (my 2nd attempt in the video does this very poorly, in fact I think I bounce off the wall and just get lucky. 99% of the time the wall will end you)
You can drop off the pink wall earlier to get better times, to upwards of low 47s, but its harder the earlier you go.