It's a tricky subject and everyone will have opinions on what gunks up coils quickly for THEM. To me it is (in order) chain vaping, too high wattage, sweeteners, colorants, certain flavors, too high VG, temps rising in a tank, and well, the type of coils you are using and does the coil "match" the juice, IE higher VG capable coils are often sub0hm coils, they are designed to handle it. Also, what drop in coils you are using will make a rather large difference.
If it were me, I'd probably try my hand at rebuilding before jumping directly to unfavored, although I guess unflavored could give you a sense of how much or not flavorings and other additives affect your particular coils.
If you get an RTA setup, you will also have a backup and will also be able to rotate your setups during high chain vaping times.
You don't have a ton to lose, and a lot to gain if you find yourself liking rebuildable atomizers.
Best of luck,
Anna
If it were me, I'd probably try my hand at rebuilding before jumping directly to unfavored, although I guess unflavored could give you a sense of how much or not flavorings and other additives affect your particular coils.
If you get an RTA setup, you will also have a backup and will also be able to rotate your setups during high chain vaping times.
You don't have a ton to lose, and a lot to gain if you find yourself liking rebuildable atomizers.
Best of luck,
Anna