Hi yes I did as a matter of fact on my "TigerTail ,"built from M.A.N. plans I incorporated dual elevators but on Ron C. s last Tigertail design the plans shows one push rod and aside from any adjustments at the rear linkage it worked fine AND survived the crash that totaled it. I decided to build another Tiger Tail like your dads (nice picture) and got the plans from a friend with the S.P.A. ---what the heck here is a picture of my TigerTails dual elevator linkage it even has a 4 bolt wing .I don't fly it much any more as its 20 years old and way heavy with its re paint a couple years back . Again nice photos and if you really want the original Tiger Tail I can see about giving the source of the plans(no longer available from Model Airplane News...)