When I started out many, many years ago the best eyepiece around that a young apprentice could afford was a Ramsden(!!) - the UO Orthos were well beyond my reach!
An ol' timer I knew gave me the great advice" Son, at f15 even the bottom of a Coke bottle would give good views - use what you've got."
Re sliding weights - you can get fancy or just use a wrist training weight velcro bag wrapped around the end of the tube....
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