Hmm...good to know what sizing worked for you. I haven't gone quite that big...was a little worried.

I wish there was a way to run a channel into to secondaries base plate. Sort of a controlled air leak, say, adjustable with a air-bleed type jet. The other approach would be to crack the secondary throttle plates just a tiny wee amount to let some air in, but not initiate any of the secondary fuel system....easy to say, quite a bit more difficult to actually implement.