Nitrons on a Plus SIx, raised the rear by a few mm. No problems with humps since fitting, and - as they are adjustable - if there were that could probably be addressed.
I hear there are some issues with Nitrons fitted to Morgans causing clunking sounds from the rear suspension area. MMC have apparently impounded their current stock of Nitron shocks. Not sure if it's a generic Nitron issue or an issue with Nitrons being fitted to the Morgan suspension geometry.
