I did fit the forks from the 1100S but they where not much better.
I then spent an arm and half a leg getting proper internals fitted to fix the problems with the Ducati OEM Ohlins fgr736 I think
Now lovely but was quite a path strewn with problems.
all that remains are the stanchions and sliders almost everything else is now modified.
also now had an Ohlins shock custom built to match.
Not at all cheap but I love my M1100evo
DukeSixNineSix if you need a std shock I have my original sachs hanging on the wall
shout if you need it.