Mine has the Goff progressive springs fitted, and they are a lot better than the old soggy standard ones I took off.
But I can't give a fair comparison between a good standard pair and the progressive. Comfort better I would say, but not sure about roadholding or handling. Also fitted his dual rate damper rods which are a big improvement.
I need new rear shocks pretty certainly, and now I have discovered a return of rear wheel play, largely cured by a new bearing and a bit of loctite (stub axle to sprocket) last year.
Along similar lines to the original enquiry has anyone got the NJB shocks fitted and if so how do you find them? They are a good price and I don't need anything fancy.