Spoke too soon, it appears to be working. (Very rusty on logic) I expected the change on the hour, it happened after... TSTGT as opposed to TSTGE. ROSSW, may I ask... why wont this work if I use TSTGE for the CH 21? If it does then I need more practice and less late night experimentation.
 
PERIOD:
    TSTGE CH 6 RAM2
    TSTGT CH 21  
    SET RAM2 0  
    SET OP5 RAM2  
    RET