Hi Broona (and Vanny!)
Don't forget you've offered me the boss if it doesn't fit lol! Not that I'm trailing you round the web or anything

Vanny's right, I'm well impressed with my Momo Corse wheel

The standard BX item is a 4 spoke effort made of plastic, so a nice bit of leather is much nicer to hold - rain or shine!
I've got a pic of the BX boss if you want it - have you got a pic of the back of an AX wheel? On the BX you'll find an indicator cancelling cam on the LHS of the wheel at 9 o'clock when sitting in the car. I imagine the AX is the same if the indicators are on the left, and only depth could be different.
JUST HAD A BRAIN WAVE!! Had a look in the Cituning catalogue and it lists M3005 for an AX dating from 87-91 and M6822 for 91 on (so I guess a later facelift model?). The BX item is listed as M3004. The difference may only be depth but it'd be worth a careful look, or a call to Cituning to check
www.cituning.ltd.uk Boss is listed at £35
Cheers
Adrian