Hi Steve,
I had to strengthen my base for a 12" Zhumell when I first got it about 3 year's ago. While doing so I also replaced their teflon with bigger piece's from meridian telescopes and used a record as the ground bearing. It was such a difference, very smooth and is just as smooth now as it was then. Don't know if it would be as good for a 13.1" but it would'nt hurt to try. No problem's here with mine.
Clear Skies,
Darrell
I had to strengthen my base for a 12" Zhumell when I first got it about 3 year's ago. While doing so I also replaced their teflon with bigger piece's from meridian telescopes and used a record as the ground bearing. It was such a difference, very smooth and is just as smooth now as it was then. Don't know if it would be as good for a 13.1" but it would'nt hurt to try. No problem's here with mine.
Clear Skies,
Darrell
