[ForSale-Swap] Hamstick question

[Ray Friess]

This is actually a technical question ... but thought someone might have 
the answer.
I have a 20 meter hamstick that I'm getting ready to tune.  The stinger 
is presently longer
than the stinger on the 40 meter hamstick I have been using for mobile 
operation.

Does anyone have a suggestion for a good starting length for the stinger 
on the 20 meter version?
There is no cutting chart that comes with a new Hamstick, so I thought 
I'd ask the gang here
if anyone has experience with one....

Ray  wa7itz