The old style roller furling
was an abomination invented by the devil. Terrible system that results in a baggy mid point with a very tight leach that ends up stretching into a bag. Too much sheet tension soon ruins the sail. They are tedious and slow to wind
in and limit where the sheeting for the main and new style vang can be placed. You end up with a big lump of bolt rope
and sail at the tack. Hard to believe this system had such a wide adoption as it really is a crap system. This is speaking from experience sailing in the strong gusty trades which usually required rolling a reef in. After ruining the shape of the main trying to use the roller furling
just went to dropping the main if a reef was required.
Install cheek blocks and the necessary hardware
on the boom and go with slab/jiffy reefing. Way easier to reef and a good setting sail when done right. Better yet, buy a new boom with internal slab reefing. Did that on my new old boat
and the new boom along with running the reefing lines to the cockpit
has made reefing a pleasure.