No it is not sprung at the lever end. It just uses the standard self-centering springs in the box. I can only assume other conversions’ linkages/cables are too tight/stiff if they don’t self-centre. As far as I know, all Link-Up conversions self-centre. Does your’s Jamie?
And its not a new improved linkage. The video above was of one of the first Link-Up cars converted and the linkage design has never changed.
I did drive a car converted by another converter that required 2 hands to get into reverse. That was interesting.
HTH
Mine is very good, think Dan’s car is slightly weaker but still good.
I have also driven another Co’s demonstrator and i could not get it into reverse was told there is a technique for it - not impressed