Yeah, I've tried warbirds and it doesn't change my point. I also learnt in a C152 and since she's such a mother one can think every plane out there is like that, but you know they aren't. I also got cleared in a C172RG for advance aircraft (you know, retractable gear, constant speed prop, cowl flaps, and all the fancy stuff) and funnily enough it doesn't feature aileron trim, only nose and rudder. How can I tell you what a nice experience is having a 3 hours cross country while holding the yoke for left aileron. I once put a friend of mine in the back right seat to compensate for it, and it flew quite nicely BTW . I guess not "every propeller aircraft flies "off-trim" after all , and before you tell, no, it couldn't be enhanced by ground crew unless you wanted the opposite nice thing of having to hold the yoke to the right at low speeds and specially while landing which would had clearly been much nicer.
Still, MiG-21 doesn't feature aileron trim and… it just doesn't from factory despite ulterior modifications, what can I do about that? Remember DCS modules are a "still picture" taken at the date of the info devs could find, and even though aircraft aren't always the same and get modified during it's service life and all, we are stuck in the picture, date, and info found by devs we have. So, 1972 factory fresh MiG-21Bis doesn't feature aileron trim, the manual is clear in forbidding asymmetrical loadouts, and local, later, punctual, whatever mods simply aren't contemplated and I just don't know if we should open that path since everybody ask for their own likes and dislikes in every module so the original base aircraft is a good reference point to prevent getting lost in all the whishlists happening every day in every module. I mean, if ED or any other third party would open that can of worms you could end up having to put the ashtray in the Emil the day we have one just because once Galland did put one on it's mount and wishlists, as the name suggests, are endless so be sure someone will say it's necessary to have the infamous ashtray. Just a silly example, but you get the point.
Anyhow, don't think I say no for the sake of no, like my personal opinion would matter or influence devs in any way , and if at some point we get the v2.0 of this module, as apparently we would nobody knows when, who knows what new features it could boast, perhaps updating the asymmetrical loadouts could be one of them, but for the moment I believe M3 is quite bogged down with their current WIP modules and I just don't think they even have the time to stop thinking about minor features and goodies like that.