Niiiiiiiiiice

Flat bottom to my understanding provides the most lift. Semi symmetrical may have slightly less lift. Symmetrical is used more for vertical control surfaces such as rudder/stabilizer. I am not sure if there would be any advantage to using FB or Semi Sym on vertical surfaces. I think if you have a single tail rudder and you use FB or Semi Sym it will fly weird because it should pull to one side.

@AudioDud3 You must be joking! I checked out a couple of your planes. Seems like you got it. I could suggests unbendable wings. They are nice if you want to build multi-pieced wing and elivaters so they don't fall apart. I tend to make the main wings of two or three pieces and the elivatersof maybe the same or more. Then play with the semi symmetric/flat bottom/symmetric setting. Usually I use flat bottom on the front wings and adjust the tail elevator pieces to one of those three combinations. You gotta fly a few test flights to get it closer to what you want. Same applies to canards. Not sure that helped.

Cool jet! I don't usually give advice, mostly because nobody listens! ;) But... I was messing around with your jet and noticed it kinda wants to dive. If you adjust the canards to semisymetric it makes it fly fairly level. Just some unwarranted advice.

looks like the derpy Boeing proof of concept

coffin