Adrian, give the guys at Works a call and discuss it with them. I did, and just told them what I want, and I learned a TON about my bike's suspension. The guy I spoke with (I wish I remembered his name) was really well-versed in Harleys and the weak suspension they offer stock. He actually recommended installing their springs with the stock oil. Since mine is an '05 and the oil is so easy to change, I'm replacing the oil anyway (it was disgusting coming out). You can drop the Works kit right in through the top. I've placed the order but mine haven't arrived yet, it takes them a week or so to ship, and another week from Cali to Ohio. Once I have mine in, I'll report on the difference, but I know Works is a very well respected name in motorcycle suspensions outside of the Harley world, so I expect great results.