I decided to start tying flies again after a long hiatus. My first attempt was a gold and black bendback. The first couple were pretty awful, but the third one came put pretty nice, but when the head cement dried, it was a powdery white instead of clear. Any idea what could cause that? And can I fix it by putting on another coat of a different cement, or can I just color it black (the intended color) with a sharpie marker?