I’ve been recently focussing on keeping my bowing arm as relaxed as possible, specifically my wrist. I’m slowly making progress with this, and I think the tone of the fiddle is getting better as a result. Much more resonation! But I have lost a bit of precision now I’m holding the bow more loosely – I hope it’s just a matter of getting used to it. (Youtube alerted me that there was a copyright infringement when I tried to upload it, so the algorithm at least can recognise the tune!)