OK, thanks I understand now.<div>
</div><div>I checked my ignition modules and these are the markings. I Assume the n# is the number we are talking about. And the 4# is the one with <span style="background-color: rgb(251, 252, 255); font-family: Verdana, Arial; font-size: 13px; ">single setpoint all in timing advance and all the others have the curve to match a mechanical curve.</span></div><div>
</div><div><div style="font-family: Helvetica; font-size: 14px; ">20cc 4#  Model A-01</div><div style="font-family: Helvetica; font-size: 14px; ">20cc 4# Model A-01</div><div style="font-family: Helvetica; font-size: 14px; ">20cc 3# Model A-02</div><div style="font-family: Helvetica; font-size: 14px; ">30cc 3# Model A-01</div><div style="font-family: Helvetica; font-size: 14px; ">35cc-RA 6# Model A-02</div><div style="font-family: Helvetica; font-size: 14px; ">55cc-RA 5# Model A-02</div></div><div style="font-family: Helvetica; font-size: 14px; ">
</div><div style="font-family: Helvetica; font-size: 14px; ">The 20cc airplane I am flying now has the 3# Model A-02 ignition and it seems to have a curve equal to a mechanical curve. The 30cc and 35cc also seem that way but I will have to run them and see how they seem to react. I haven't run the 55CC-RA yet.</div><div style="font-family: Helvetica; font-size: 14px; ">
</div><div style="font-family: Helvetica; font-size: 14px; ">BTW, I enjoy all of the planes and am just interested in getting the most reliability out of them and being able to understand enough to help others.</div><div style="font-family: Helvetica; font-size: 14px; ">
</div><div style="font-family: Helvetica; font-size: 14px; ">larry</div><div>
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