Fred I do not have to worry about any balance offset. There may be stretching but it is no where near 'jumping' I used to have with the standard gearbox.
PE is the biggest furphy as a measure of stability in our autoguided universe. It is random jumps that stuff up images. I got rid of gearboxes years ago on my HEQ5.
Is zero backlash worth it? You have got to be kidding!
I adjust the the backlash to almost zero on both DEC and RA on the EQ6's worms even now.
Bert
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