It was pointed out to me that progressive springs "are stiffer than stock" and "only changing the oil viscosity will change the ride". I'm happy with it, my ass is happy with it and that's what matters. Since I had to hold the shims down myself, I have to disagree with their assessment of being stiffer. And to me, the ride is better with less shock to the senses over bumps. I don't believe I would want a different oil in the forks, this combination feels just fine to me and it DID soften up.