Okay. Follow up time.
The Legacy is here and I'm very favorably impressed by it.
First off, the Legacy at 3.7v with a 1.5ohm atomizer using 18650 batteries is surprisingly effective. I'm not sure what PureSmoker did, but this is (so far) the best 3.7v unit I've ever used. I've never been a fan of 3.7 because vapor production is too weak for my taste and throat hit is inconsistent. But in this Legacy configuration I'm getting about 75-80% of the experience I get with my Prodigy 3.1. It produces a surprising amount of vapor and packs a pretty serious punch when it comes to throat hit. The primary difference is the temperature of the vapor. The draws are notably cooler than those coming off the Prodigy, which is to be expected.
Next, with the Legacy configured with extension tube and Kick (officially the Legacy XL configuration) the device hits as hard or harder than the Prodigy 3.1 at 6v. I have the Kick set to aprox 9.5 watts, which seems to be my sweet spot. The vapor production is quite aggressive, besting the Prodigy by a fair amount. The draws are just as warm as the Prodigy at 6v and the throat hit is significant but seems a little smoother and less harsh than the Prodigy. The big difference I notice is consistency from hit to hit. It seems to deliver the exact same draw each and every time as long as my atomizer isn't too dry or too flooded. - I should have mentioned that I use standard atomizers and drip tips. I'm a dripper, not a carto or tank user. -
Size wise the Legacy with extension tube is practically as big as the Lavatube. It's slightly slimmer in circumference and about 3-5 mm shorter overall. The beed blasted barrel is very finely made, as is the polished adapter and end cap. There are a lot of subtle but significant hardware upgrades here over the Prodigy. Check out some of the more extensive reviews on the forum for more details.
Overall, the Legacy seems to be the superior device in comparison to the Lavatube. It's much better made, more attractive and more consistent from hit to hit. The Lavatube only bests the Legacy in two minor areas: 1) The digital controls on the Lavatube make it easier to adjust on the fly 2) the Lavatube has a nice deep well under the atomizer connection, which is useful to drippers like me. The Legacy has no well.
In comparison to the Prodigy V3.1 the legacy is significantly bigger in the XL configuration, but this fact is ameliorated by the ability to use 18490 batteries + Kick without the extender (I've ordered some 18490s so I can use this smaller configuration.) In the "standard size" without the extension tube the Legacy is still bigger than the Prodigy 3.1, but mainly in girth. The standard size configuration is very comfortable to hold and can be used at both 3.7v with 18650 or at higher wattages with 18490s and a Kick making it a nicely customizable unit, appropriate at home and on the go.
I'm still getting a feel for battery life in the different configurations so I can't speak to that yet.
Overall, I'd say that the Legacy is a more than worthy successor to the Prodigy V3.1. It's a robust, mature mod that delivers consistent results and offers a lot of configuration flexibility. If you're on the fence about it, don't be. Pull the trigger. You won't regret it.
I'll post more in the coming days as I log more hours with both of these devices...
