Yes I agree with you, the new manitou shocks with their SFS shim valving is night and day between their SPV damped shocks. But neither of those damping systems are bad, they both work great for different rider/racers with different riding styles and different terrains. We just want to offer services and upgrades to people who want to have their suspension maintained and in good working order, and or custom tuned to their spec.If Cortinas rebuilt shocks work as well as the new shim-based swingers that Manitou has been shipping the world is in for a treat.
The new Manitou shocks work amazingly well so far!