All 109s are best flown as Energy fighters - using its high climb rate to dictate the engagement. Normal Boom & Zoom tactics with very high speed passes do not suit the 109's style. It is better suited to the style of energy combat where the main objective is to set up a moderate altitude advantage right over or near the target. Then use short sprint dives with moderate closure rates for gun passes. The 109 can then climb back out and loop or climb away as necessary.
My squad primarily flies the 109g6. Its not a BnZ plane. Like all 109s it has decent climb and great rudder authority. It has a decent instanious turn rate that added with some rudder can allow toget inside a breaking plane for quick shot. Its important to land these shots though or if you miss and overshoot you will wind up dead.
All 109's, regardless of version, share numerous traits:
Excellent climb rate
Good rudder response
Excellent performance between 12 and 22k
Above average low speed handling
Good negative-G handling
Good Acceleration
Below Average visibility from the cockpit
Not particularly "new pilot friendly"
Moderate to low ammunition supply
Heavy Controls above 640km/h
Mediocre durability
The 109-G6 is a mediocre fighter at best. At the hands of an experienced pilot it can hold its own. The 109G-6 is not going to compete with the Spitfire at low altitude and will get plum ate up in a stallfight. The G6 still retains two of the biggest strengths of all the 109's - its climb rate and its service ceiling. These traits alone have limited utility in the main arena, but is very useful in events and scenarios. The G6 can climb fairly well, but not nearly as well as the 109g10. The g2 is slightly faster and climbs a bit better. What the g6 gives you over the g2 is the mk 108 3cm cannon. This cannon alone is enough to pick the g6 over the g2.
You want to stick to energy fighting in the g6. Dogfighting will get you killed quick. Of all the 109s the g6 really needs to be flown with a wingman. The 109-G6 pilot has to choose his engagements carefully, and watch his energy level carefully when confronting planes of superior performance. The 109-G6 can use its one great asset - climb rate. Use the your climb rate not only to outmaneuver other planes in combat, but also to elude other planes when necessary.