Pedal is fine, checked when replacing master cylinder. Not going to have time to check gear oil before track day though as its a tricky job and pouring of rain :(

Similar to the reason I have had overhaul my gearbox, basically mine (even with the sheddist), was nye on impossible to get in gear at high revs, in my case 1st and 2nd.

My gearbox was whinning a bit as well, so guessed it was past it, so now going to replace the whole gearbox, flywheel and clutch.

Once I got the gearbox off, I could see that the release bearing and arm was pretty much seized, which could be your problem if your gearbox oil is OK, and you are not getting any whines etc.

the reverse sensor on the gearbox is (on mine) the same height as filling plug and can be used to fill and check gearbox oil level, its a lot easier to get at as well.