I don't think there's any merit in cages except for them being quicker, easier and cheaper for the manufacturers to assemble. The cages in my Raleigh were plastic, and the balls used to come out, then just mangle the 'cage' between them.
With loose balls, just put as many balls in as it takes to fill the race, without jamming them in tight (which will be more than the cage contains).
Could i take the bearings out of the cage and use them as loose bearings ?
Which are best in a bb loose or caged bearings ? if loose bearings are the best how many should you use in each side ?
Could i take the bearings out of the cage and use them as loose bearings ?