Lately I have been encountering problems when making aircraft. after I've build a perfect body I start on the wings. The wings are always where the most things go wrong. This is because the wings are a specific thickness. I would like to be able to change the thickness and maybe even shape of a wing. I have tried to bypass this by putting many wings on top of each other and making one wing out of it. This creates alot of lag and the shape is still hard to change. I would like to see something like this get implemented in the game, because I think it wouldn't be a hard thing to do and it would help alot with the building of amazing aircraft.
Something I like to do is flip the sizeable fuselage block left or right 90 degrees and flatten them out. I also set the shape to circular which gives it a nice aerodynamic look. as for the wing's wobble, sometimes if you attach a part to the end of the wing thats also connected to the wings root, it'll cause the wing to be much more rigid though it doesn't always like to work.
Yeah, this is one of SimplePlanes’ biggest flaws. The wings look terribly unnatural unless you do a fuselage wing, which is a total pain in the arse. Not to mention what you said about them being rigid and glitchy.