I tried the clearos my first couple of weeks vaping. I recently changed to a carto tank setup. I believe it is the smoketech version. The dual carto I originally bought worked great and the flavor was better to me than using the clearos. I bought a pack of the carto refills and now I'm having problems. The issue is that the cartos have two punched holes instead of one and they are flooding the carto often. Are there any carto refills that only have one punched hole? I've seen the DIY hole punch device, but not sure of which carto to buy. Another issue is that I can't find that good taste using my ego twist. I mean which voltage. Not sure of the ohm that originally came with carto tank setup I bought first. The refill cartos I have 1.2+- ohm. Thanks for any help. I tried to go back to a new clearo, but the taste just isn't the same as my carto tank working well.