That is exactly what @FXRich was saying... MECH MODS do NOT have safety features found in regulated mods, and if you build a bad coil or have a short, a regulated mod will shut itself down before a catastrophe happens... a mech will overheat, short, and potentially blow up (especially when using a cheap, low-Amp-load battery). This is why anyone using a mech SHOULD test their coil builds, either with a regulated mod, or with a respectable Ohm Meter before firing the coil on the mech. His answer was spot-on to the OP... testing the build on the eVic is a good idea and just as reliable as testing on the eLeaf REGULATED MOD.
Seriously... no need to be so defensive over mechs... it seems most of your posts are hyper-defensive / hyper-sensitive over mechs, and while you opinion does and should matter on the subject... not everyone agrees they are the end-all-be-all of vaping.
Many of us still use mechs too (although not as frequently as a couple years ago), and it is common consensus around here (VT Forum) that regulated mods are more mainstream because they are safer (primarily) as they safeguard against shorts and bad builds! My (and many other's) preference to a regulated mod is the simple fact that they deliver a consistent vape throughout the entire functional life of the battery's charge, rather than a constantly declining voltage application to the coil, like a mech mod does....
Regulated mods have come a long way in a short time, and even major cloud-chasers use them... because today's regulated mods can handle (safely) builds down in to the 0.1 Ohm (and even lower) range. Regulated mods of a couple years ago could barely handle builds down around the 1.0 Ohm range, which is why mechs were the preference of cloud-chasers, drippers, and those who built sub-ohm coils.... mechs were the only way to fire those coils back then! Today, there are much better, safer, and plenty of design options in regulated mods....