No I’ve never seen it close to gl. Couple hundred, minimum, or you can’t kick out of it.
Some of the full size competition airplanes have just about the power to weight of a giant scale R/C...which borders on ridiculous. But like I said you are not likely to ever see this done at ground level because of safety concerns...I remember a guy named Shawn Tucker use to do a really low and really slow knife-edge in his highly modified and over-powered Pitts and we use to question the wisdom of that...no room for error...in that condition all the lift is provide by thrust and not flying surfaces...engine burps...you are taken to the cemetery....and possibly someone in the crowd will be going with you....