I finally got around to installing mine. Like a fool, I don't have any pictures (I'll try to get some), but I mounted the valve where it can be easily reached through the driver's suspension, just behind the radiator. Maximum restriction (and therefore less front brakes) is with the valve all the way out, and I went 2 turns in from that.
I think it's just luck, but the brakes seem perfectly balanced with that setup. The rear starts chirping a bit, and then the fronts lock, which tells me they are pretty close. I will probably turn the knob in another turn, so the fronts lock just a bit earlier. Obviously I want balanced braking, but I also don't want the rears locking first and putting me in the ditch. A little safety is necessary.
I can't wait to try it out on track or an AutoX course. Without actual data it's hard to tell what a difference it made, but it definitely feels like it stops faster now. For a street goblin, the stock brakes are very safe with the fronts locking so early, and are probably adequate. But for track work, this mod is a must-have in my opinion. Plus, I'm only out $60 I think, or maybe less. About $40 for the valve, and another $10 for the pre-made line I bought, plus taxes and shipping. I even reused my stock brake line, so I only had to buy one new one.
Great mod guys. Simple, effective, cheap, and lightweight. I can't really think of a reason not to do this one.