That's not the proper technique for the FO8 anyway, only made necessary with this glitch, but...
I would swear mine was working absolutely fine when I used the clutch. Not entirely sure about just easing off the throttle, as in the FBM, but I shall check it now...
EDIT - I've been running the car at Aston, and I've found that - changing gear as the red shiftlight comes on - it goes into second without lifting the throttle or declutching, third without lifting or declutching, and fourth without lifting or declutching.
Fifth can be reached
sometimes by easing the throttle all the way off and flipping the paddle whilst the throttle is fully closed, always by disengaging the clutch irrelevant of throttle position, but never by leaving the throttle open and the clutch engaged.
Sixth can sometimes be reached by easing the throttle all the way off and shifting with throttle closed, but slightly less often than fifth. As with fifth, dipping the clutch will always allow you to shift but keeping the throttle open and the clutch engaged will never let it shift up.
Looks like the only reliable way to drive it is to flatshift using the clutch to fifth and sixth. The clutch is never necessary for downshifting, this only seems to be affecting upshifts. Dipping the clutch to get to fifth and sixth is only
very slightly slower than if you could use the sequential box normally, and doesn't add to clutch heat by any noticeable amount. It doesn't matter what the hell you do with the throttle, so long as you dip the clutch in time with the shift it works.
I did notice the car fail to shift from third to fourth with the throttle open
very occasionally, and this was always fixed by releasing the paddle and then trying again without needing to let off the throttle or do anything else out of the ordinary.
EDIT after Post #11 - this test was carried out using the race_s setup
Sam