Hi Any & Bruno !
Hehehehehehee !!! This guy is a Die-Hard-"SpaceDragon" or "DragonAce" player !!!
But I have to tell you I could do the same ( ... or maybe BETTER :-D ) with DL & SA Euro !!! .)
I tried them together just 2-3 weeks ago in my little garage-gameroom ( DL ran on my DL"repro" cab and SA on my Mame cab ) , while there was 2 friends watching me playing ... but they was not so surprised : they just told me "You're MAD !"
I will soon post a clip ( I think I could ask someone to do it ... someone you know ... an exceptional "witness" ... heh !!! )
BFN , friends