It's the negative G's that need to addressed. Right now, you can go full redout and fully recover in a second.
I would agree that the current very mild effect of Neg Gs should be toughened up. Maybe after the first second or so you see "stars" for 5 seconds after you recover. Then each time following it gets progressively-exponentially worse.
But it is not an invalid tactic per se.
J.F."Stocky" Edwards - DAF
I look and I see this big red nose and he’s not very far away and he’s just slightly high like that [Stocky again illustrates the relative aircraft positions with his hands]. He probably went up higher. And I saw his nose drop and he wasn’t more than a hundred yards out again. And I felt all this happen and I saw his nose coming down, and
I thought beautiful... intercept, so I just jammed the stick forward. When I did that all the dust and sand in the airplane went flying up in my face. I put it right forward and I’m going down more or less spiraling almost out of control because when you push it that hard at that speed you lose control of your aircraft.
Lt. Douglass Golding
I was flying Red 2 down sun when the call "Duck!" came over the R/T. I immediately followed my No 1 round in a sharp left-hand turn, and looking back, I saw an aircraft coming out of the sun dead astern steeply onto my tail.
I put the stick left and forward with left rudder which seemed to nonplus the attacking pilot. He banked steeply, trying to get inside me...
Robert Johnson 56th FG
He’s too close.
I shove the stick forward down to the right, swerving the Thunderbolt beneath the Focke-Wulf.
Joe Rosbert - AVG
Looking back I saw two of his mates trying to train their sights on me.
I pushed the stick forward so hard I almost catapulted through the canopy. As I hurtled downward, I crouched down expecting at any moment the thud of bullets on the armor plate behind.
All the best.