I crack all the screws loose first..not removing any completely.
The 2 backstrap screws and the one to the triggerguard. that is..
Back 'em out a turn or two in sequence...
Be advised the mainspring puts tension on all them pieces, so when getting
close to the end, have a good grip on the grip..
Conversely, when reassembling, be prepared to do some real squeezing to get them started back.
Do it once, you'll figger it out...
HTH
PS..the only dumb question is the one you don't ask...