I've just completed a batch of chisel hammers ready for the Yandles show next week. I've increased the diameter of the 'bulb' from 40 to 42 mm which gives it a more meaty feel in the hand. The rippled ash on this batch is particularly tight and iridescent and there is a good number of the darker olive ash which is my favourite. I managed to obtain 35 cube (420 board feet) of this wood a few years ago, all from one tree. I have enough left for about 1,000 handles, so I'll be ok for a while!