Well, I'd say mechanical mods are a typical step up from VV, for the vapers who go that far (and not everyone does; don't feel pressured to). But there are things to consider. It's not as simple as just picking up your device and going about your merry way all day every day. Mechanicals have things you need to consider. I hesitate to call them draw backs, because they aren't necessarily. It just depends on you. Same with "benefits." Maybe, maybe not, it depends on you. So I'm going to make you a list, but instead of labeling it pros and cons, I'm going to call it what I like about mechanical mods, and things to consider. Here you go.
What I like about mechanical mods:
-The cool factor. They look pretty awesome.
-The simplicity. There is so much less to break down of malfunction than a VV or even an ego. Nearly everything is replaceable, many of the parts for only a few dollars. Basically you've got a tube, two connection points with an activation switch, and a separate battery. There's no computer to fry either.
-The versatility. You can run standard tanks, cartos, clearos, attys etc if you want to. You can also do rebuildable coils at pretty much any ohm you want* (There will be more on this under things to consider). You can even get a device called a Kick and do variable voltage. I can decide I want to do VV, pop in the kick, set it, and if 10 minutes later I feel like subohming? I just take it off and continue with the same device. Many mods are either telescopic or come with several size tubes. This means if I want something heavy with max power and vape time, I can pop in an 18650 battery and have it. My friend calls me and invites me out but I don't want to bring a massive heavy mod with me? Easy, take out the 18650 and either screw the mod to a smaller size (telescopic) or change the tube, pop in an 18350 and I've got a compact mod better for going out and about.
Things to consider:
-You'll need to do your homework and learn how to use your device correctly and safely.
-*There is no built in safety component in a mech mod like there is in a VV device. There's no ohm cut off or short protection. This means you need to be testing your toppers for ohms compatible with your battery (mostly a concern if you rebuild) and shorts (a concern whenever you put ANYTHING on a mech, rebuilt or factory standard, even if you've been using the topper a while, I check mine compulsively).
-You'll have to learn about all these things: Ohms and Ohms law, volts, amps, shorts, minimum and maximum discharge. You have to have a battery rated for a certain number of amps to vape at a certain level of subohms. Here's a good place to start understanding ohms and amps especially if you're interesting in subohming:
http://www.e-cigarette-forum.com/fo...-discussion-safety-battery-info-warnings.html
-But even if you don't intend to subohm, you'll need to know about volts because you're going to need to be testing your batteries. You can only run your battery so low in volts before it's has the potential to be unsafe to charge again. Likewise, your battery can only be charged to so many volts, before it's completely unsafe to ever use again. You'll need to test your batteries before and after they go on the charger. Battery safety is a big concern and something you'll want to learn about in depth.
-You'll need extra equipment. It's absolutely essential to have a multimeter and an ohm meter with a mechanical mod. (You can actually test ohms with a multimeter, but trust me it's so much easier to just get an ohm meter that your toppers just screw on to). These are essential items for safety. You cannot do without them.
So there you have it. And this is just a summery, there's more to it for sure, but this is a good starting place for you. And this list isn't to say that I don't absolutely love mech mods. As of now, I pretty much use them exclusively (occasionally I break out the old egos lol). But make no mistake about it, mech mods are not simple, and not exactly new user friendly. this really is a device best used by advanced users who have the willingness to learn, and the dedication to continue to use them safely. If you're willing to learn and do, great! A mech mod may be the best new toy you could get. However if you're not willing to learn and do, stick with your regulated devices, for your own safety.