Ron, I have tillered 4 of them (2 bulletwood, 1 osage and 1 yew). Mike and Jason makes the best bow blank out there with the best customer service availiable. The blanks all turned out awesome with the exception of the osage....All went well with the tiller job, I was at 27" of draw when the bamboo decided to splinter on me. That is how I wound up getting to work with the yew....Mike replaced my osage blank with the yew blank (minimal upcharge, by my request) with no questions asked. He backs his work 100%. I have also made one of the glass blanks and It is one of the best shooting bows in my arsenal!
Give their BB blanks a try and follow the instruction from the vidio and you will be very happy with the outcome......Terry