The 109F-4 is a very capable airplane, and with the gondolas, carries 1000 mg rounds and 400 20mm cannon rounds. It will turn with most planes (well, most of the popular rides), go decently fast, and kill easily at 400.
That being said, its not at all hard to fly, and quite a fun plane to fly.
Zoom if you want (or if you need to), map your forward hat switch to Foward/Up view, set your convergence to 400, grab 75% gas, get some alt, and then get to that part about settling in 200 on someone's 6 and start knocking parts off. Ignore the framing! Wear the watermelon out of the hat switch, watch your enemy, get a feel for where he's going, and the obstruction of the framing won't be so big a deal.
Cheers, Good luck with it