I heard they wherent practical becuz there was no real way to properly seat your clones without seepage on the roto and moisture getting to ur nuggs which inevitably led to bud rot in shtuff i read up on.
Still that may be all grower error i could think of a million ways just off the top of my head to try n get those station lock tite so no feed could drip on the upside down side of the roto action idef wouldnt throw it away if i had one without first giveing it my all to try n make it work cuz that is totally useing that roto to fullest maximized potential if only u could get past the all the quirks n get in fine tuned.