Trying to address the 'problem' discussed here (in a nutshell: we believe that frontal firing by scouts was more accurate than firing from a rear-gun), my friends and I have been using the following rules (and we're loving it!):

You need two (2) A Damage Decks, and two (2) B Damage Decks.
Remove all the zeros (0) from one (1) of the A Damage Deck (but keep the zeros that are also gun jams)
and
Reduce the zeros (0) from one (1) of the B Damage Deck (we leave 2 zeros plus the zeros that are gun jams)


Use the Reduced Zeros Damage Decks for Scouts and Two-Seater frontal firing arc.
Use the remaining Normal (full zeros) Damage Decks for Two-Seater Rear-Gunners

Single MMG use B Damage Decks and double MMG use A Damage Decks as usual.

voila! Frontal firing arcs are now more accurate than rear-gun firing!

In addition to this we're also using the following rule:

In order to simulate deflection and accuracy lost when firing while turning, Scouts and Two-Seater shooting with their front MMG shoot with the normal (full of zeros) Damage Decks.

Some planes what were known for being very stable firing platforms may ignore the former rule.

Those are:

SE5a
Fokker DVII

LFG Roland VI
Bristol F2 Fighter (only for the frontal MMG, rear-gunner is subject to the normal rear-gun rule and draws cards with the normal 'full zeros DD' always).

In order to ignore the rule, the maneuver right after the turn CANNOT be another turn nor a Steep Maneuver (the 'logic' behind this is the following: we're assuming that these planes can 'stabilize' faster than the rest, so if the plane fires right after coming out of a turn and then flights straight or makes a controlled wave then the bullets burst wont suffer deflection. But if the plane continues turning the deflection will occur. We assume that a step maneuver makes the plane more unstable, so the plane has no time to 'recover' right after the turn and looses its 'stable-platform' bonus too

SPAD VII and XIII (stable but not very-stable) can ignore the rule too, but only if the plane plays a Straight Maneuver right after the Turn when it had shoot


Hope you find it useful!

any feedback will be welcomed!