A cheap $10 volt meter from harbor freight or even Wally world is a great tool to use to compare between mechanical mods...pretty much an essential vaping tool with mechs.
I concur. Recently, suffered trying to guess ohm rating on coils I built. Had unfortunately compromised a voltage meter here and needed waiting on funds to get another. Being without use of one demonstrated their absolute need of having one. Not pleasant feeling to rely upon hope and experience to guess at an ohm range.
That is not to say one can fully rely upon a meter to get correct ohm rating either. Margins of error and possibilities of malfunctions, still better to use a meter. Poop happening will be poop happening, using a tool or not using one. Risk is better mitigated though using a tool statistically.
Please do not misunderstand, misconstrue what I'm writing in this post. I am not debasing the use of an ohm meter. I am in fact expressing an ohm meter in my opinion be used.