Thank you Dreamer for answering my question. I had posted this question on the Yamaha Arranger forum (SZ) and although 38 people viewed it, had not gotten a reply. Lack of SST may be a deal breaker for me as my compositions rely heavily on patches bleeding (intentionally) into the next patch. I don't want to divert the original thread so I won't post anymore on this one about the issue. Hal