kikko nudum x onzuka normal

[xwa27]

this is an experiment that i do between kikko nudum and onzuka normal

[fanecchissimo]

good result, i tried the same, but seedlings are still small, not grafted.

[AstrophytumCultivars.com]

Looks like classic A.myriostigma v.strongylogonum cv. KIKKO

[Carlo & Daniele]

Good plant Sandro, I noticed some kikko white have not so many trichomes and seedlings from this plants come out frequently nudum.
It is possible that they cross kikko nudum with onzuka like you did and after they tried to make the trichomes more dense.