I got the Super Stunt 60 after hearing from Randy and a couple of other owners. (Thanks, Randy.

) I was so impressed with it I went ahead and bought a Super Stunt 40 when WM had a $10 rebate on it back in April. I've been having a ball flying the SS40 ever since. I added flaps to the SS40 like on the SS60 so it has all the same capabilities of the bigger brother. I programmed my 9C as per instructions for the H9 Ultra Stik. It has become my favorate plane for honing my flying skill after a 10yrs hiatus from RC. Compared to the extremely popular Ultra Stik series, these WM Super Stunts, being very similar except lighter, bigger and cheaper, are genuine sleepers.
My SS40 with an Irvine .53 and 8(!) servos on board weighs in at 5 lbs 13 Oz. The wing area after the 4servo wing mod is 945 sq.in., which yields a wing loading of about 14 Oz./sq.ft. The SS60 will be even less, at around 12 Oz./sq.ft. estimated. The old saying about lighter planes fly better couldn't be more true with these birds. Most of the time I just putt around the sky at barely above idle. This plane doesn't know what a stall is; it just kinda mush forward like the big Kadet Senior does.
Anyways, since I stole the taller landing gears from the SS60 for better prop clearance flying the SS40 off grass, my SS60 is still sitting on the bench awaiting a taildragger conversion. While I'm at at it, I plan to split the elevator and reshape/strengthen the vertical tail, which has been a reported weak point of these planes. Power will come from either an Magnum 1.08 2stroke or an APS 1.20 4stroke. I read about a guy who put a Saito 1.80 on one, and I believed he bought a second SS60.
I really love the two-piece wing with balsa-filled aluminum joiner tube and removable horizontal tail. The down and right thrust is built into the firewall. The build quality is excellent, as I've come to expect from WM. The hardware is perfectly adequate, though I will upgrade them on the SS60 since I'll be overpowering it. I actually like the instruction manuals. They have few words, but the drawings clearly illustrate everything you need to do, which isn't much. I guess I'm used to the European pictogram style manuals. Personally, concise well-drawn pictures are much preferred for these jaundiced eyes that have grown tired of reading pages upon pages of instruction text.
Would I buy another one? Yes, if I don't already have my eyes set on the new WM Super Sport Senior. But for $199, I might just get another SS60 to do a low-wing conversion and put one of my weedies on it.
Randy, which AW Edge 540 is that? They have about a dozen or so different models, and even the .60/.90 one is priced leaques above the SS60.