Hi Guys,
Interesting topic,I think your getting close. To my knowledge they were both released at or on around the same time. Very simliar to how the model 3 roto and 4 special ran..Neither were a utility,the option was starters. The sure start was released as the newer or more appealing option on vcode 6(what you would know as 9). 3,the last recoreded engine no of the model 5 from my own research is CAC.... So to me the next in line would be DAP before they reverted back to number sequence...which incidently is as EG 2DAB11111. I think number sequence is irrelevant considering they were produced at similar times,while your "DAP" serial may denote an early run of the model it does not necessarily determine the model itself...the use of tank on cowl (what you know as the model 9)would be a follow through from the model 5 only in different styling which to me would also place it as the earlier model while the "tank IN cowl" (as you know as model 6)would be more revolutionary and carried on to the next generation of mowers placing it as the later...Anyways there are a few more bits like the later code engines being the wrong way around but I tend to agree with the models being reversed and the bulk of documents stating the 2 are meant to be the other way around. 6 should be 9 but since they ran almost side by side im unsure if there will be a definate answer. This may well be why the models werent amended in print form,because they ran together and wernt very different. A little extra bits for your theories,Im sure near all your info is all but accurate:) Either way a very good topic and extremely informative. Thankyou, Mal.
