Ok spill it. What's the codeThe KF4 was overly complicated. I liked it enough to use it almost exclusively for over a year. There were enough issues that I wouldn't pay $175 but for less than $20, it was worth dealing with. The convenience of top filling was what I liked the most. TP worked most of the time but was still flaky once in a while. Taking it all apart and tightening everything fixes it for a few refills.
The KM3 is mostly good but capacity was too small for me. The KF5 is working very well for me so far.
I used a code for Angelcigs and the total was $25.49 shipped.