Clutch plate fit issues

Thought Id treat the old girl to some new steel plates as the old ones had sat in water and had some rust marks, as did the thick outer plate [PO parked the bike under a drainpipe I think...] - but the teeth of the new plain clutch plates and the pressure plate all had to be filed, quite a tedious process, to get them to move freely in the clutch basket [ the old ones moved freely] - has anyone had experience of this problem?

Surely all Commando clutches have the same dimensions?
Looking at the way the new plates are made [stamped, with slight burrs], compared to the old [machine cut?, maybe Surflex] it looks like a cheaper product. Andover I'm sure wouldnt knowingly sell a plate that would require filing so can anyone shed light on this problem?

Steels have always been stamped.
What brand?
Larger than expected burrs/out of tolerance dimensions are the product of dull dies, or improper die clearance.
You could have a non-standard (pattern/aftermarket) clutch basket out of spec. Pics please.

Never file a steel clutch plate.
The clutch center gets notched and needs to be replaced by a hardened one . That's the most common problem. That and a crushed lock tab washer , and an over tightened clutch nut to crush the soft circlip.

I bought a set of clutch plates for my BSA Gold Star. They didn't fit the clutch center. When I complained to the dealer (Walridge Motors), he contacted the manufacturer in the UK and asked for an explanation. Apparently he was asked: "Doesn't the customer know how to use a file"? By then I had filed them and they worked fine. Kind of annoying.
Never had this problem with my Nortons.

come on guys he stated STEEL plates. this has NOTHING to do with the hub/center