Is there a list of "interchangeable" cartridges that fit the Persei?
For Dry Flowers is the Hercules the BEST?!? Should I hold out and wait for any upcoming products?
Also do you guys clean your cartridge inside? Is this possible? I like to taste the diff strains...
The only thing that matters when it comes to your first question is an adapter. The Persei is 601, so any 601 threaded device will work. Alternatively, you can buy 601 to XX adapters, so really you can use anything you want as long as you know what thread it is and, if needed, buy an adapter.
The only other cartridges to use with your Persei, IMO, are the clear CE4 atomizers for Pure Gold or otherwise runny oils, and the Thermovape Dart Cartridge, which is hard to find. The Dart is great for Pure Gold as well, I think, but is a lot less volatile than an Omicron cartridge.
For Dry Flowers, the best device currently available is the Bender. It's on D9V's site. It's all glass, requires 7.4v, and reportedly has the best taste of any portable out there today.
You can clean your cartridge in limited ways. Some here will say you can ISO soak a cart, but I haven't tried it, or wanted to. They're tricky little devices, so further tinkering can easily fuck them up. There is a method I have tried to great succes: get a needle / paper clip / etc and heat it up til it's glowing red; insert red hot needle
gently in to the shaft on the top of the cartridge (they call this the flue); rotate and move up and down slightly and
very gently if you have a big clog; afterwards, you can do the same to the bottom hole, but make sure not to force the hot rod too deeply, as the bottom hole has less area to be cleaned.
I don't think this will help you with the strain tasting. If you put .5 oil, .2 is going to have to remain in the cart to lubricate it. Your next fill will sit on top of this .2, and until you finish that, it will taste like the first strain. When you reach the new oil, it will start tasting like the new one.
Good luck.