... changing grip to correct a sight problem is senseless.
e.
All things being equal I'd agree but if a shooters grip or trigger manipulation is not correct to begin with no amount of sight adjustment is going to make a measurable difference. But yeah, if they’re grip/trigger is good, than no, it doesn’t make sense to change their grip to accommodate the sights.
IME, benching is most effective at longer ranges (i.e. 25+ yds) to fine tune. The OP is off at only 3 yds. IMO benching it there or even 7-10 yds doesn’t add any benefit. Even a decent shooter should be able to get a proper group at that distance two hands unsupported….if their grip/trigger is correct.
Just my .02
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