RE: Plane Snapping
Witterings, with any plane you construct, even it the kit is perfect, it's important to laterally balancing your aircraft, verify that the elevator halves deflect equally and that they do not flex where the halves join. Also, having your CG too far FORWARD will actually increase the stall speed, and the tendency for the stall departure to be more abrupt, as well as causing the wing to drop more rapidly than it would at a more aft CG. While a plane may be a bit mroe stable on the pitch axis when flying on the wing, near the critical angle of attack (jsut before a stall) it doesn't do you any favors. Getting the CG back will often lead to little more than a mush right on into the stall and a slower wing drop which gives you more time to fix it (though be careful not to go too far back either!). In my opinion, the final and most important thing is to learn proper rudder use. This is something of a complicated subject as there are many forces as work. . .spiral slipstream, P-factor, and gyroscopic effects of the prop etc (and the latter two tend wto work opposite each other so if the pitch rate is low p-factor wins out, if the pitch rate is high the gyroscopics win). So learning what the rudder is for (beyond the basic concepts of coordination with ailerons or for ground handling) and also remembering that a little blast of power increases the control surface authority should keep you out of too much trouble with respect to snapping out of figures, if you are flying on the wing, or 3D, you will need these skills to be "good".
As for the post that suggests it’s a poorly designed aircraft. . .I’ve seen this one fly quite wonderfully, and Extreme Flight is known by just about everyone to make some sweet flying airplanes!
As a pilot of full scale unlimited aerobatic aircraft, I always find it odd that people knock an airplane because a fully deflected elevator (and this may be with the rather obscene throws that a 3D pilot uses) will cause an accelerated stall! Some aircraft give you a little more notice than others, but ALL will do this up to their maneuvering speed, above which things may break on the airframe (in full scale)! A designer could do things to minimze these tendencies in an aircraft, but in so doing they would also be removing attributes that are desirable in an airplane of this sort. Getting an airplane that will depart abruptly when you ask it to, but still have adequate control to prevent this in the hands of a skilled pilot is the ideal!
The full scale Extra300L is quite easy to over-pull when on the back side of a loop etc, even when near its maneuvering speed of 158 knots. This charachteristic also gives it good snap and tumble performance though too! You wouldn't want it to fly through these figures, even though so many RC planes I see fly right through snaps (and many rc pilots just dump a bunch of aileron in call it a snap), but flying through these figures is not going to impress those who know how these maneuvers should look, even though it makes these planes that fly through everything very easy to fly.
So say you have a plane that demands you fly it. . .it really shouldn’t be a terribly big deal to ease off the elevator pressure, and lift the dropping wing with rudder. . .if you can’t do this without much altitude loss then you need more practice (unless your airplane if REALLY out of whack). Yes, you can limit total surface travel if you can’t limit the travel of your fingers, but that’s throw that you will want to have for other maneuvers . . .and how will you ever learn the art of flying if you don’t actually do it!
Consider though that I also don't get why so many people can't enjoy flying knife edge if they have to add some bottom aileron and back stick. . .I guess some people want a more arcade experience than others, but I love flying for the art and challenge of it, both RC and full scale, and if I simply had a button to press to roll into a KE, or to snap, I guess I'd find a new hobby. (OK, so my computer radios DO have those buttons but I don't need to use em!!)
That's my .02 on the subject.