Hmm. I'm not the best with fittings. My solenoid in incorporated into the regulator prior to the CO2 port so not really any opportunity for separate connections. Maybe a pic would help to see what you are working with?
Also - just to help clarify, I don't really bypass the bubble counter so much as run a higher flow rate (1-2 per second) where fluctuations won't really come into play and the valve on the regulator is far less prone to clogging. My effluent is around 80 - 100 mls/min I think (don't have a flow meter on it but might consider that in the future - Bicyclebill uses one that is pretty simple) so, likewise, high enough to avoid issues with needle valves. Hope this helps.
Somewhere, @Bicyclebill had a nice write-up of this approach but not sure where it is anymore. I basically stole it from him after getting frustrated with trying to do fine control on both effluent and bubble rate and the challenge of two variables in combination with really finicky hardware.