finally tried the condom method, using the fill syringe to measure out the 1.5 ml needed to fill the XL cartos, and I blew out the tube in a way that allows me to "catch" the excess in the condom, so I can use it to top off the carto. It works great, I'm sold.I just wish I'd figured all this out before wasting a lot of the buttered rum flavor from Highbrow, but I can (hopefully) always order more.
Now I gotta figure out how to reclaim the juice from the cartos that didn't work.....lol!
You could do a reverse taryn spin on them...using a lanyard or pouch on a long string. If you put a condom on the mouthpiece end (leaving a little space for the juice to collect) you can even salvage some of that juice to put back in the bottle to recycle it. Spin it with the mouthpiece OUT.