Simon,
I think self bows are more difficult as each piece of wood needs a different approach. Laminated or backed bows might alow us to change one thing at a time and see what the effect it.
Sometimes the effect is a broken bow!
Yes, sometimes it feels like we have had enough of the learning. Trouble is, once you feel that you have the right formula it isn't so interesting and the urge to make broken bows takes over
I sometimes think that I am working to perfect the broken bow! It always seems to be the bow I take the most care and time over that breaks, while one that takes littl;e thought and effort is fine. Maybe I should stop thinking.
Alan, I am glad the bow broke now rather than in use. I have learnt and I hope that the next attempt will use what I learnt and be a good one. I must try to avoid the temptation to add another variable!
So next bow is still a 110lb bow before attempting a 150. Bow making can be such fun. How else could you spend days and days having fun making something only to have the chance to start all over again.
Mark