ok, time has come in the build where i want to fit new wheel bearings

problem is my hubs r 1.3 popular items still, as i was unaware of a difference, but it seems the rs turbo uses different bearings to the 1.3.

i thought the hubs were the same tho? wots the difference? and shud i fit a 1.3 bearing into my 1.3 hub, but then will i have issues with an rs turbo driveshaft not fitting correctly thru the bearing etc etc?

any help wud b good, i kno its a bit confusing, but i wasnt sure where else to ask