Here's my concern.? The nylon center piece is worn enough where the mating metal coupler can move along the axis and almost pull out on one side.? With the SLW's the 2 cap-screws holding the?worm bearing blocks are not tightened down and can move.? Without a fixed point holding the assembly tight the assemble can shift wide to side and cause backlash..
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Jim W
Phoenix, AZ. USA
Losmandy GM811G
