Just got my car back from having HSD's fitted. Bought them back in October on the DW Group Buy Offer.
Absolutely transform the car, feels so much more planted than with Stock. I had the ride height set the same as I had (JSpec), I did think about dropping it a bit, but figured I can do that later if I fancy it.
Been playing around the with the Dampening Adjustment a bit and it amazes me how dramatically the ride can be changed as you adjust, I'm going to have a lot of fun this summer me thinks!!!!
I used a family firm in Thornbury called Miles Tyres. I found them last year through one of the other forums and I honestly can say their service has been one of the best I've ever come across. They were super friendly and everything they stripped, was then cleaned and greased before being put back on the car, and when I picked the car up they went through everything that had been done before getting me to go out on a test drive to ensure I was 100% happy. Only after this would they take my money and even then the price was a pleasant surprise considering they'd fitted the HSD's, rebalanced my wheels, fixed a puncture and fully set the whole car up.
As you can tell I'm happy!!