All the youtube videos on the internet could noy help me lol I learned through trial and error and I think that troal and error is the best way to learn and develop your own yup your own style of building a coil and finding that right ohm that fits you .
For me it took 3 months to get to my genny sweet spot .... Yup 3 months first I tryed 32g 2ohm on mesh 28 on mesh 30 32 and 28 on silica 2 &3 mm witch was really hood actually after the first month and a half I found that I liked 28g kanthal 5/4wrap micro coil around 3mm silica in my genny for 1ohm exacty finnaly it tasted right and I was happy and I vaped like that for a month . Now I experimented with ss rope and found I like 3/32 ss rope with a small 400 mesh diaper and a 5/4 wrap even spaced for 1.2 ohms
So there you go give it time ... It took me three months to find only 2 setups I can vape from a genny a 28 g 1ohm micro around 3mm silica and a 28 g even spaced 5/4 around 3/32 or 1/8 ss rope with a 400 mesh diaper . Thats it man to me any other coil just taste burnt or metalic or wont cut it .
I had an easer time with rdas because for some reason any old coil will vape as long as its wet and not shorting out lol and they are good practice for rba building .
I personaly think it may take you a few months of building coils trying them out and tering them appart everyday for you to find a particular setup that makes you go .... Ohhh wow mmmm this it what its suposed to taste like !
Dont get frustrated man buy an igo and try your skillz out with that first and then aply what you have learnd to your genny . Dont be scared to build your genny with silica eather I find it is a very nice vape big clouds but slightly muted flavor . Good for those rich creamy vapes . Mesh brings out the notes in friuts and sours . I build my genny ether way now depending on whats in the
tank .