DIKI i heard some demoes of the Yc61 , yamaha always excelled in pianos but not so much in organs . i have the GENOS one of the best arranger in the market if not the best one , but not a sattisfactory hammond sound and leslie.
I Was not impressed also from YC61 in hammond sounds,
CRUMAR mojo is the real deal in hammond sound as a low price clone and the K PRO is also interesting with fantastic leslie sim and very good hammond sound but screaming too much in the upper octavs and the price is twice than the mojo.