I don't know exactly which kits they sell. Any of the HID+Halogen kits will have no usable high beam pattern, and no way to fix it. Any of the twin-tube HID burners will not have good high beams either, also with no way to fix it. The retracting types are usable, but you'll probably need to modify the retraction length to work almost "well".
Really, the only GOOD way to go about this, is to engineer a reliable tilting kit. Period.