His BABIP is .462 on the year. FOUR SIXTY TWO. Edgar had a .335 BABIP for his career with .340-.380 in some prime years. Ichiro is running a .340 career BABIP but like Gar was routinely higher than that in his prime.
If Ben Gamel is going to run a .330 BABIP for his career he'll be an OUTSTANDING hitter - but nobody runs .400+. Everything he's hitting falls in, and he's not even reducing his chances for fielders to find those gapperss by hitting it out of that park occasionally. I can't tell how good Gamel is because I have no idea what he's like as a normalized hitter. There's no way for pitchers to attack him right now because he's knobbing singles and flaring doubles in every game.
I like his speed, but the utter absence of home run power even with his modified swing means he's going to have to have the spray-it-around-the-park skill to keep his value high. His ISO is exactly in line with career norms, but his average is 80-ish points higher than I'd expected.
Right now his line drive percentage is 28.5% (league average is a tick over 20%). He's continued to spray the field pretty evenly (30+% to each third of the field) meaning he can't be shifted against (unlike Seager, who is always at 40+% to his pull side and 25% oppo). Those are patterns that are incredibly good for Gamel - but can he keep it up as those balls inevitably find gloves and his balls-in-play numbers come back to earth, or will he change his approach or his success areas?
Like you said, moe, hitting like this for a month gives him a chance to plant a flag on that low-homer-but-high-impact hill that all those players you listed staked their careers out on. I still haven't bought in that he's that kind of player yet, but he can fall a long way and still be valuable at a glove position. Of course right now he's not playing a glove position, being staked out in right field. As long as he doesn't change his approach to justify a corner position like RF or even 1B in spot starts, maybe he really can last.
Just keep doing what you're doing, Ben - don't change anything.