to be fair, watching the vid again, theres no reason the starter should be energising as button isn't being pressed, so that isn't the imediate issue. could well be a relay issue , try swapping them out in the main fuse box+starter circuit (where main fuse is). there must be a short/loose wire...
it was for me, happened quite a lot on all 5 s1k's, usually on the 1st session or so, found after a recal. it was fine, i started doing a recal every time took the bike out before 1st session, seemed to help
make sure the area is clean, also warming the rim, or the tape a bit before hand will help it stick, unless you have **** cheapp tape? bur me, gaffa tape has to be one of the bloody hardest things to get off the rims!! (well, the residue at least)
the amount of lever release before clutch engages, can happen when you replace lever as you ususally have to loosen via the adjuster, thibk he's just sayingto check before you flip it ;)
t6 i think, its a tiny bugger (could be t8 though...) and a pain to get the tork to sit in it properly,make sure it is though before you try to loosen it...
the electronics on the 2024 will be a big step up from the hp4 race, from memory, the electronics on the race are rck3 based, if not exactly same , which is only (i say only with a slight tongue in cheek) 3axis, newer gen bikes or far more tunable, 6 axis etc.
depends on which tracks tbh, but a good all round combo is 16/44. with a track with a decent straight
parts wise, depends what your after, if it's just general stuff, filters, consumables etc then anywhere really.
just remembered i had a coulple of front wheel slides at oulton last week, (tyre was completly ******, at least i had the sense to come in and swap it ;) ). gonna have a look at the data tonight to see if i can pick it up on there, be interesting to see whay my bike does/did electronincs wise...