imo & ime, "dayglows" that have the highlighter florescent look to them are faded.... ever seen a rose bta fade and turn "dayglow"?ever see a lfs get in a shipment of bta's and some have that bright highlighter look to them? i have. lol i learned to stay away from them. they either didn't make it long term, or they gained color and lost the "dayglow" look once they got healthy. imo, that's about like selling a "white sebae". once it gets healthy it turns green / tan.
if you are going to try one, i would advise seeing it in person to look it over. things can look awesome in a pic, and be a totaly different ballgame in person.
maybe i just haven't seen any true "dayglows". lol although, i collected bta's for awhile, had dozens, and noticed patterns.