the G-10 becasue of it's speed and height was able to accept equal terms with the P-51 in aerial combat over the Reich but on 9 out of 10 combats on a regualr basis the P-51's by sheer numbers had the advantage as well as the altitidue already in the favour while the G-10's and Doras had to climb unequally to meet their opponent.
the Dora 9 used by JG 26 was to try and counter the RAF spitifire. The Dora/III./JG 54, flying high cover for Kommando Nowotny was to try and keep the P-51/Spitfire escorts at bay and away from the jet airfields.............they failed at doing so.
The Doras in II./JG 301 were to fly high cover for Fw 190A-8 and A-9's of I. and III./JG 301 when on anti-bomber missions.
JG 2's Doras were to try and counter anything that was Allied.
G-10's used by IV./JG 301 were to counter the US P-51's but failed.
G-10's on the Ost front used by JG's 51, and 52 dared to have any soviet a/c meet them on the higer plane and the Soviets suffered from it unless having a 10 to 1 superirority ratio which was common in the spring of 45.
G-10's were used by NJG 11 as a whole throughout late 1944 till war's end to counter high altitidue Mosquito's and then once called off of that to intercept Lancs/Halibags without the useage of radar to make Mossie nf interception that much harder..........
just some examples.