Sunny side up? Circlip sharp side vs smooth(er) side

Spirolux look like they'd be a ***** to remove,but there must be a technique.
After doing one or two it becomes simple, ending edges have edge to start small screw driver and lift first ring, usually three rings, then use a second small screwdriver and start around groove and allow ring to raise out of groove. Simple after doing one or two. Installation is simple, just separate first edge and start into groove, take finger an roll each ring into groove, usually three rings, check to see all seated, and your done
 
Am a Tig welder by trade. Very good at it considering I weld on Military aircraft. Weekend mechanic but Know my limitations. Transmission is beyond my abilities. Yes we can remove it period. Yes we can install it after it is reworked by some professional. Will leave it at that.
 
The circlips Robinson's uses are not only way thicker but appear to be surface ground so they are sharp on both sides. Can't really install them wrong.
 
Spiralox should never be reused. Just yank um off with pliers and discard. Replace with new.
 
Think it's a good practice to always replace snap rings, spiralox, etc., cost are minimal.