I purchased some off JF3000 here on OzSTOC....very happy with the low beam result. They cut off nicely and have a good spread until the Darla's pick up where the ST Headlights leave off in width.
To have the low beam set just right it has the High beam to high for my preference......but then you cannot see the H4 High beam through the Light Tech spreads and the Krista spots....so for me no loss.
I lost count of the amount of times I had to brake or move around on the road for grass hoppers last night.
cheers