The Siren V2 is a 22mm tank and should fit on just about anything. The Ares is 24mm and will fit both of those Hcigar devices. I cannot see the color vs B&W being any real difference in power drain. I use a modified version of the UI so mine is mostly black anyway (I recolored the UI DJLsb uploaded, watch his review of the VT 75D for details). However, the VT 75D is dual battery where the 75 nano is single battery. So you are going to get longer life from the 75D no matter what.
One of the biggest differences between the B&W 75 and the 75 C isn't the color but the extra "Select" button added to the C version. This makes for the BEST menu system of any mod I have ever used. To change a setting you use the up down buttons to move a cursor, "Select" what you want to change, make the change, Select again, and that's it. There is no hold these 2 buttons for 3 seconds, or press this button 5 times nonsense going on with this menu system. Seriously I can't fathom why every device hasn't moved to this type of setup.
Good Point Scott. That extra button is worth a lot, thank you. I'm choosing the mod for a friend (he tested 4 of mine so I could access his needs best. He is worth the extra few $ for a Select button. I ORDERED HIM THE SIREN 2- a 24mm is available. I WILL GET HIM A DNA-75C. SO GLAD THEY FINALLY HAVE THE MAC SOFTWARE ON ESCRIBE.. 75 IS HIS WATTAGE NEED & HE NOTICED THE DIFFERENCE A CHIP CAN MAKE WHEN YOU USE THE SAME TANK ON 3 MODS... I WANT HIM SATISFIED.
Pardon the digression here, but I agree about the unnecessary button combo's. Even the Aegis and Modefined's Prism 250W (Lost Vape's new sister company) have a menu button... & a better display, but not the DNA chip- and they still haven't released any information on who this mysterious new designer is that has managed to near perfectly match the DNA's efficiency (I think DJLsB knows, he's worked with the software for the Sirius which has such available... the Prism has yet to need any firmware changes, so no access to it for us yet. I would have gotten him a Prism but 3 batteries are not the weight he is looking for, and the Aegis- really like it, but not thrilled with the battery life of a 26650... they should make that a 166w dual battery for version 2.
IF YOU LIKE THE TRIADE, GRAB A PRISM BEFORE THEY ARE GONE. AT $50, IT'S THE IDEAL MOD FOR THE MORE CASUAL DAY WHERE YOU MIGHT NOT WANT TO BRING A TRIADE OUT. I COULDN'T FIND MANY STORES THAT HAD MODEFINED's 1st VENTURE AVAILABLE YESTERDAY, WHILE THE SIRIUS IS WIDELY AVAILABLE. ELEMENT VAPE STILL HAS THEM I BELIEVE. WHAT WILL THEIR 3rd MOD BE...
[I have both a Triade & a Prism- bought the same month. The overall dimensions are actually identical, they just changed the format at the top some making the Prism seem taller. By losing the raised plate around the Triade's 510, they where able to use that space inside to get the Prism's 510 more centered (and on a flat plate). The only place you notice really notice a difference between the two is if you tried to swap battery doors- Prism's are 1-2 mm taller, but the elephant black leather feels like it's cut from the same cloth.]