“I don’t know what the standard trigger pull is supposed to be on that piece (a bobbed hammer model) but it seemed unusually heavy to me and she is investigating having it modified. “
A DAO trigger on one of those SPs runs about 6 lbs.
Any decent gunsmith can smooth the trigger up for less than a hundred bucks.
If I had to guess (and I do ‘cause I don't have the stuff to measure it) I'd say it's well over 6 lb. And I dunno maybe it just needs a good internal cleanup and relube but it doesn't seem all that catchy and I think it needs at least a lighter spring. Not too keen on the idea of squirting in Bon Ami & hoping it all washes out.