Day by day by trying different planes and experiencing different missions I think that UP 3.0 is almost perfect and in the final DBW version has the extra flavour to make it fantastic. There is a lot of attention to the detail in the loadout, the 3D fixes, the maps etc. and every day seems a new discovery! I cannot think of anything that I didn't like and thank God that in DBW there is a non-track IR option!
For me your only priority now should be to make it able to add more stuff without crushing. Don't waste a day of effort for 4.11. Just focus on re-working the limitations of the game engine and then include mods that are already here. It's important that we will not have any competition between modders of what will be added in the next UP/DBW release. The friendly enviroment that is held within SAS (and UP) must be maintained. It's also important because mission/campaign builders avoid working for 'stand alone' downloads. By doing this IL-2 may have another 3-4 years of life.
I am happy with the new buttons. That means the IL-2 field mod. with the playable gunner will be included in the next release. The story with the rear gunners in the IL-2 it's something that I was always amazed. Flying in the russian winter, under -30C in the frozen air, totally exposed, with no armour, no communication with the pilot and then surviving all this....