Yes, its perfectly fine. I build my own
coils to hit betweem .19 and .21. The tolerance is so close that a difference of .01 to .02 is not even noticeable. And the other factors such as wire type, final leg length, etc. and even the type of
rda or rta can cause the exact same coil vary by this much. Its no biggie..as long as youre using a regulated
mod, there is no problem with small variances. Now if youre using a non regulated mech mod, ya gotta have the resistance pretty tight as to what the battery is capable of out putting. But regulated mods are much safer in this regard and are more forgiving as to resistances used.