I have a omicron V1 and recently got new cartridges from a collective on venice blvd. in culver city....My last cartridge I got with the omicron worked great, got fat hits every time...however the new cartridges I bought Says 4.0 EC/6 W9 Tech on it, and all I get is hot air. I loaded about .7 of really good co2 hash in it, made sure I melted it enough for it to drip to the bottom, and still I get no hit...just hot air with no taste of the great hash I loaded it with...this is really strange...and it is also strange that there is so many different voltage cartridges when there are only two omicrons...I am confused and disappointed...is this the wrong cartridge for my V1 or is there a way to fix this super disappointing problem?