Went for a 60 mile spin this morning, the IKON shocks are a huge improvement, takes out the jarring bumps and manhole covers, also keeps the back end exactly on track round bends, vastly improved the ride.
The bike sits about 10 mm higher at the back, but that may settle down in time, it isn't that important, I have set the rebound on setting 2 which works pretty well on sole riding.
Recommended, also looks in keeping with the 1960s look of the bike, very pleased with them.