I tried a mixture of all sorts

Currently it's:

1. BoostBR over line
2. Mini-BR of first hump
3. Mini-BR over speedpads (Can't do this one)
4, 5. Double BR in the tunnel
6, 7. Boost onto bridge and BR again after/during landing on said bridge thingy. (Can't do 7)
8. BR off overpass onto final straight.

That's basically phaeton's method from waaaaaaaay back

It's weird though because if I do this method in TT an can't get anywhere near my ghost which is doing it the 'classic' way.

confused.com