Lol, a whole thread full of people complaining that their uber dweebfire skills don't translate to the 109.
The 109 is a beast in a knife fight if you know how to make her dance. The most important thing is to know when to cut throttle and she can keep inside of some of the best turning planes in the game. The general approach to the 109 is to come in on a BnZ course with cut throttle and try to E burn and slash attack behind em while avoiding the overshoot. If you keep that throttle cut there arn't many planes that can force you past so they will instead have to do some dweebfire sustained turn to get free, which lets you just hit WEP and climb back up. Basically, treat it like a knife fighter in scissors and E fighter in turns.