update - emailed PP this morning and they responded quickly...
here are some info they sent.... i think i will leave it at Speed 2 for now..
PRE-S: Select the pre-stretch percentage, 10%,15%,20%, 25%, off, cyclically.
: Knot ON or end Knot
MEM: Select a tension setting from the memory, 4 settings Cyclically. PULL & RELEASE: Start Pulling or Release.
Brake: Control the turntable rotation or stop.
MENU:
Enter or exit parameters setting interface.
All the below parameters can be Select/set/modified in the menu.
UNIT: LBS/KG
SPEED: pulling speed, 1(lower),2(Middle),3 (High)
SOUND: 1(lower),2(Middle),0(Off)
KNOT: choose how many extra pounds added when KNOT
(5%,10%,15%,20%)
PRE-STR: Select the pre-stretch percentage,
10%,15%,20%, 25%, off, cyclically. LIMIT: This is means the hold-time.
1 mintue,2 mintues,3 minutes
What is the LIMIT (hold time): When a string pulled, but forgot to release it, the program will releases the string automatically according to the set time (1 mintue, 2 mintues, 3 minutes).