My Persei is no more. In order to keep firing my stable of Hercules carts I got my first box mod, a
Smok Alien 220. I've only been using this mod for about a week now but so far I'm really loving it. It's everything that I wanted in a regulated portable power source. I set it in watt mode for the ceramic heater in the Herc. At first I set it for 35W in "normal" strength but then I discovered the "hard" strength setting which boosts the power initially before decreasing to the set wattage. This behavior mimics the much loved ceramic heaters native positive temperature coefficient where the power level falls as the heater heats up due to increasing resistance. So now I run it at 30W with the strength set to "hard". This provides an initial power of 35W decreasing to 30W as you take a hit. Perfect! I can get a hit super quick (~3 seconds to vapor) with less risk of overheating.
Since the connector is 510 I bought 510 bottom adapters for my existing SR-71s. I also got a
Hercules 510 SR74z at the same time. It's interesting to compare the SR-71 to the SR-74z. My 2 remaining SR-71s have 1.6 ohm heating rods while the SR-74z is 0.8 ohms. The regulated mod detects which one is attached and adjusts automatically so that I get my set power level with either type Herc. On this regulated supply I find the performance of each Herc type to be identical. I worry about the longevity of the spring loaded center pin of the 74z so I'll order a few spares.
Finallly, I really like the comprehensive display information and all the settings to play with. I also like having the option of using wire heater attys in temp control mode. The unit seems quite solid and designed with plenty of margin that I hope will translate to a long life. Maybe I'm just excited because this is my first box mod but if W9 ever comes out with its own mod these are exactly the kind of features I'm looking for.
Edit: I'm using the Alien mod with 2 LG HG2s. Wonderful batteries so far. After a day of vaping with the Herc I'm at 82% power left.