Ok this is what i have done and recommended to many others who have issues with certain makes of motor stuttering.who now do this.
Set up on usals.
For example you have 30w-42e ok on usals
Send to 30w on usals.
Stores sat status-change to diseqc-store sat status-change to usals
Go to next sat maybe 15w is yours
Follow the above routine again
Next 12.5w maybe and so on till you get to 42e.
Once you finish on 42e leave on diseqc not usals.
You will find now all sats are stored nicely on diseqc and no longer have to put up with the motor stuttering on usals.