New DP clutch plates won't fit - suggestions?

[stay_upright]

Stuff like this always happens to me - new DP clutch and the steels don't fit.

The lugs on the inside seem fractionally too wide so it *just* won't go onto the basket. I managed to push one steel on but it was tight and I can't see the clutch working with that much friction to move the steels....

So I either file each lug a little = 32 lugs/plate x 7 plates = lots of filing.

Of get GG OEM plates but that's time and potentially a lot of money (upto £10 each? = £70 not £18) and of course I'm racing on Sunday so it would be nice if I could start the bike in gear and for it not to repeatedly stall in the woods (stalled 20-30 times last race)

I checked the clutch codes and the kit is correct for a 96-2006 EC model...

I'm thinking i'll get the file out after a cuppa tea...

Anyone know if I will damage (warp) the new frictions if I use them with the old steels?