Kuzma 4Point vs Airline - is it worth the upgrade?

So, sorry to revive ancient history, but where did you guys come out on the Airline v. 4 Point debate? Did anybody have both set up at the same time for comparison? I've been using the Airline for a while, the arm is great, the pump is a PITA. I'd love to get away from it, and go with something that requires less attention, but obviously, I'm not interested in compromising the sound. Thanks and hi syntax, nice to see you.

Hi Whart,
sad to hear that you are not in love with that pump :-) The one I had worked
day by day without any problems or noise (there was an additional valve which
can be closed to reduce noise). Normally it is simple to replace the unit (I would
do that). There are lots out there which are used for dental labors and they
aren't expensive.

Syn: it works fine, but it is noisy, it is in an adjacent closet to the music room, and there is nasty electrical snap when it cycles, even with the extra relay Kuzma provided- the only way i got rid of the electrical snap was to plug it into a big 240 volt isolation transformer! I did reach out to Scott M re the upgraded pump, which has a bigger tank, and arguably requires fewer duty cycles, but i thought if I could go 'pump less' there might be joy! When i move, i could relocate the pump to the outhouse or whatever, but I'm trying to simplify my life.
btw, just got the lamm L2 back in the system, and it is kicking some serious ass with the Allnic H3000, which is now further along in its break in cycle.
Still be curious if anybody did a direct compare between the Airline and 4Point for sonics.