Hi cornish mafia, sorry to complicate an already complex-sounding subject; that wasn't my intention. To be honest, I'm a big believer in 'suck it and see'. If you can easily get your hands on a suitable RSV(R) linkage & dogbone at the right price, I'd go for it. It's a proven mod, loads of people on the forum have done it and all of them give it the thumbs up. As I said, the only reason I looked at alternatives was because of the hugger.
If it were me I'd just stick the Ohlins on the bike (with linkages etc.) and see how it feels. I'd hazard a guess that for your weight, the standard Ohlins spring will be pretty much bang on. The reason I say this is that (for me at least) Ohlins always seem to over-specify spring rates for my weight (around 11-ish stone). But a couple of extra stones weight would probably bring the shock and spring into its best working range.
So I'd certainly give it a go before splashing the cash on revalving and respringing the bugger. As it happens, I'm going DOWN on the spring rate, because it feels too firm for me. I've ordered a 700lb spring to replace the 800lb spring I have fitted at the moment, as it just feels too heavily-sprung for my liking. Bear in mind I'm talking about an Ohlins shock with Falco linkages/dogbones here, so the spring rate is a lot higher than it would be with the RSV(R) kit.
If after all this, it still feels a bit soft, then you've lost nothing (except a bit of time) and Reactive will be able to advise on a suitable spring rate for you.
And your secret is safe with us...
