I don't think its the way your lighting but rather what your smoking.

Although, most here aren't into flavored cigars, if you like them, more power to you. So to that point I recommend trying a higher quality flavored cigar, maybe some from drew estate, like an acid. Or a java. You probably won't get an ash taste from them.

also, although not the best tobacco, back woods are all tobacco and have some flavored smokes so you may want to try those if you don't want to pony up for the drew estate cigars.