As far as I'm concerned, all the "variables" that make choosing a scope SO subjective are "magnified" when it comes to scoping a pistol. Bob makes good points about mass being more critical on an FT pistol. Extra weight that may be beneficial off a bipod definitely works against you on the offhand lane. How much is enough or too much will vary from individual to individual (hence, the subjectiveness).
One thing I feel bears pointing out pertaining PFT scope choice is is there is (arguably) less need for clicking than in RFT.
You should TRY other folks' rigs as much as possible to get a better feel for what works or appeals to you. BTW, the search for the perfect FT scope (rifle or pistol) never ends.