36er TPU tubes!

How do these compare to the unicycle.com “Nimbus Lite” EFT/TPE tubes?

I see these are significantly lighter - 104g vs 247g for the EFT.

The EFTs lose air - 5-10 psi/night according to the spec page. Do these have the same issue?

The EFTs are more or less unpatchable. Supposedly a patch kit exists, but it’s hard to find and is reportedly unreliable. What’s the story with these ones?