Adjust converange to 500 yards. and it still sux =/
http://files.filefront.com/Yak+9T+take2ahf/;12454026;/fileinfo.html
On the K4 at ~3:00 you are taking a shot with the plane hidden under your nose. You misjudge the position and your rounds go to far to the left. You would had missed with any other center mounted guns, ROF and trajectory were no issues this time
Shooting at the F4U 4:30
The trajectory is perfect, in slow motion with external view you see how extraordinary "lazer" like the NS-37 is shooting.
Here's the first time a genuine deficiency comes into play: low ROF and ammo. Crossing shots are somewhat mire difficult because you can't afford to hold down the button and generously spray while the target is crossing your point of aim. And the ROF (only 1/3rd of a MG 151/20) means an enemy could actually pass between 2 bullets with some luck
Killing enemy fighters in a Yak-T demands a different approach to shooting than in most other fighters in AH2. Aiming is actually easier, but getting the feel for the right timing is much ore important due to ROF & ammo considerations. It takes some time to getting used to this.
Maybe flying the Yak9U for a few weeks first could help. Also center mounted armament with few rounds, but not as few as the Yakt9T. Once you are getting used to be very tight on the trigger, you may advance to the more difficult Yak-T
Or you simply stick with it for at least a tour and take your time to learn.