I like the full moon clips for the .45 revolvers I've shot (but no longer have).
I tried spring loaded speed loaders in my .38 and did not like them. My setup for the competition was not correct for spring loaded and I had rounds falling all over the place. I prefer the "twist to load" kind.
"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."
Life Member NRA
Life Member NAHC
Former President of the ECPT (Eifel Combat Pistol Team)