realised I made a big mistake that might follow me for a long time by posting this thread ...
working on my black ash bow right now. It has been drying for the last 8 month and seem's ready now. Been working a lot on it in the last weeks, the backing is all perfect, on the same annual ring and been sanding it for a while ... it is velvet smooth.
the tillering is pretty good now, been shaving it with a lime for a long time, slowly. I will give it as christmass gift for my father, only smooth sanding need to be done now and maybe some ... ''draw'' on it ... like tribal. I do not know what yet.