Hey man, what the bud looks like isn't a good reference for when to harvest. The color of the trichomes (crystals) that form on the bud let you know when it's ripe. They change from clear (immature) to cloudy (ripe) to amber (degrading). You can check that with a microscope.

A less accurate measure is the color of the hairs. I think if you go by those you just harvest once they all turn red, but you can't tell true ripeness by that.