First, i'm going to assume your PrecisePlus was working good before you installed the Kick, so we can eliminate the Precise as being the problem.
I bought a new PP+ just to be ready for the Kick. It works great with the recommended battery & I will pound my head against the wall until it works with the Kick.
Second would be setting up the Oring under the battery. The setup is as follows: One thick (.100) Oring (included in your parts pack) under the battery. On the switch throw adjust, 1 or 2 washers depending on your throw preference under the rhodium screw in post. Those running the AW P18650 2600mah prior to the kick, need not change anything, just drop in an AW IMR 18490.
I never changed the original setup until now and that was just to try to get it working. No combination of rings/washers fixes my problem.
Third, is the ground on the Kick, Once we have determined the Precise is set up correctly, most intermitent Kick problems have to do with the ground. Verify that the ground spring mechanism protruding from the side of the Kick is touching the wall and not be interfered with by any plastic covering from wrap or other debris.
No debris or plastic interference between the ground spring and the wall of my PP+.
Fourth, top and bottom connections of the Kick. Verify that the Plastic covering isn't off center and interfering with the battery or the top cap post not making full contact with the Kick. Trim back the plastic if necessary.
No interference here either.
Lastly, eventually the brass contacts on the Kick will tarnish, clean with a soft cloth and an appropriate cleaner, such as mothers or flitz. You can put a dab of petroleum based products on the top and bottom of the kick too, like vaseline, dexoit gold, noalox etc.
I have cleaned, Noaloxed and even tried the pencil eraser trick to no avail.