Right. Heres what I did. I lapped the friction pates on a sheet of fine emery paper with oil on a nice surface table. Took it 9.75 mm or there abouts measured with a digital vernier. Reinstalled the clutch putting the fingers upside down. Installed a new pair of slave o rings. Reasembled the whole lot, Back bled the clutch, readjusted the lever and bingo. Nice light and seemingly smooth clutch. I will stick with the ATF since that is what swelled the plates. Just incase they shrink again with a light gear oil. lol. dunno if that is likely or not but why take the risk. I have a trial on Sunday so fingers crossed she will work nice. Thanks for all the advice and input. BTW there is a youtube video of a chap doing as I did online, He does a txt 125. Same clutch.
When you look at the clutch design which only has three friction plates it does seem very minimal and finger design and diaphram spring. I can see why it is so critical to have it set up perfectly to achieve a light pull. Probably high maintanence compared to a more conventional clutch but super light feel, smooth action and lightweight in design. Very nice little unit. Christ knows what those stupid clutch pressure plate bolts are, apart from a pain in the a***. Why not use little 8mm head bolts or allen head jobbies.
So back to a nice one finger clutch. if it dont work on the trial I will just buy a new S3 pack and have done with it.