I installed the lowering spring yesterday and it was easy and simple. I rented a compressor from Hyperpro . The seat is lower and I have some sag when I sit on the bike unlike the stock spring which never moved even with no pre-load. I don't like spacers or adaptors as a rule and cost was not much more than a lowering kit. Klause @ Hyperpro was very helpful. The stock kickstand is fine with just the rear lowered, no problem. Im hoping for a slower responding bike with the changed geometry as I just cruise most of the time.