Already adopted by a large number of owners, the Tides Marine sailtrack distributed by Nautex will meet all your expectations.
This rail stands out from its competitors because it is machined from a single piece, thus preventing any blocking of the slides, in a material with very high friction quality which slides into the groove of your mast from the bridge without having to it is necessary to go up there.
Its ease of installation without drilling or screwing will surprise many and its price will allow a large number of boaters to benefit from a proven system for a reasonable budget.