Tiger 1050 1050 Sticking Clutch Plates

1050 Sticking Clutch Plates
Hi I am new to all this but thought I would share some experiences I have had with my Triumph Tiger 1050 and its wonderful clutch. I have a 2007 Tiger with 40k on the clock in really good order with a really poor clutch. I decided after trying all the tips on the internet on checking condition of plates, thickness, adjustment, oil types, decontaminating, soaking and cleaning, filing out notches on clutch basket with little long term success to try and sort it out once and for all.
I had considered a new set of clutch plates but had noticed that many have tried this with poor results so I tried the later modified clutch lifter (the centre pull shaft) route but as they were expensive I modified my existing one crudely to test this out. This made a slight improvement but not what I was looking for. So after further investigation I noticed that later Tiger's didn't seem to suffer the problem. So I thought I would try and locate a complete clutch from a late Tiger. I managed to buy from an auction site a 2015 Tiger Sport Clutch complete and thought this would be the way to go.
The first thing I noticed receiving the new clutch was that the clutch had the later modified clutch lifter fitted, and that I believe original Triumph plates were very different from my existing plates.
The new friction plates were of a different style there was a greater gap between the friction pads and the steel plates had pimples machined into the face of the plates.
So after a strip down again I put the new clutch together soaking the plates and using the steel plate order suggested on various video sites as being the way to go, by the way my Haynes manual said this was not relevant.The Steel plates come in different thickness's hence the order of insertion into the clutch.
All work done I thought lets check and see the results. First thing I noticed was the clutch was much lighter (bonus) but my heart sank when i tried pushing the bike in gear with the clutch pulled as there was still that dreaded clutch drag. However when I started the bike up and took it for a decent run I was pleasantly surprised the clutch was much improved and I am pleased to say I can live with this now. I would love to say its transformed the bike totally but it still is not 100% but its definitely made a vast improvement and the bike is now running and has been running fine since.I have attached some photos to illustrate the differences.
My thoughts are that the clutch has a design fault, and that the original set up had springs that were too strong, not enough oil flow to cool the clutch allowing heat build up when slipping the clutch and that the friction pads were too big not allowing excess oil to drain away. I noticed that the new Tiger Sports have a completely different 3 spring clutch which looks more the part.
Hope this may be of some use to someone with similar problems.