Yeah I get that… I’m taking something essentially not intended to work tubeless, both rims and tyres, and trying to get them to work in a way they weren’t designed for…
That being said, I’ve got another set of wheels that I set up ghetto tubeless ages ago (funnly enough… exactly the same rims) and they seem to lose a bit of pressure down to about 25psi then don’t lose any more and they’ve been like that for almost a year and through winter.
Just seems like I’ve done something different this time.
I’ve found that I’ve got better at getting the tyre on the rim properly to mount up a proper tubeless setup, and I translated that over to the ghetto tubeless and they inflated VERY easily with a compressor. Wondered if all the struggling I did last time got the sealant in all the nooks and crannies whereas this time it inflated straight away so the juice is all where it ‘should’ be