IMO there is no such thing as too much checking when you are setting up your coils. As for wattage I guess I have a few questions first. Just double checking but it sounds like you're running dual coil set up(2 claptons) correct? What RDA are you using(has no effect on wattage, just like gear talk lol). What guage is the inner wire in the claptons and what guage is the outer wire? I would imagine that starting in the 40W-50W range and slowly increasing one or 2 watts at a time, until you find the sweet spot would work for you.
Tinkering with your atty once you've got it set and wicked isnt something I would do. Different story when you are changing wicks, always check to make sure the coils are still firing simulatneously and evenly, and adjust as needed, straighten them out, etc.
Im sure the more experienced team will show up with a ton of great advice as well! Cheers!