I know I’m replying a year after you asked the question. Didn’t have a good answer back then, maybe even not now. A few days ago I was having a chat with a 40+ year airtaxi pilot out of Naknek, works with Rocket. He had some time on the ground here waiting on some people who charted here to pick our purple grass. Damn expensive grass! When he looked at my Pacer he asked why I went with the leading edge cuff. My simple answer his question to the modifications, VG’s, Stall fences, aileron gap seals and the cuff was to decrease the stall speed as much as possible. He said most guys don't install the cuff on a Pacer because the stall speed is below the air speed needed to have effective control surfaces making it less safe in crosswinds. Makes sense because I don’t drag it in when there’s a crosswind. Sometimes I’m landing with one notch at +10 mph ( I always use a crosswind calculator after tuning into the AWOS) or no flaps when it’s better than 20 mph. I make my approach fast enough to keep it on centerline with good directional control.. sometimes I have to fly it onto the ground or land across the runway if the wind is howling and only if there’s enough room. When the winds are calm’ish…it’s really fun to get her slowed down enough to land really short..down and stopped less than 200’ from my intended touch down point. And as to the performance. I can’t really compare to what is now to what it was. Went from a stock 125 hp Pacer that cruised at 105 mph to what it is now. Flat out it’ll do 127 and that’s with the draggy bare gear, 26” Goodyears and nothing done to clean up the air flow around the wing strut ends. Cruises quite nicely at 117mph at 2450 rpm and 114 or so at 2350 rpm. I did pick up some .016” and .020” 2024 to cover the landing gear. Just haven’t done it yet. Not spending much time at home since February due to my brides medical issues.
