In reply to David Bennett:
I just had the channel sliced so my recovery should be quicker than yours. I was advised not to use it strenuously yet but have been doing more than recommended, particularly indoor bouldering with good mats. It feels OK: so far so good. I was hoping to get some practical guidance from people who have had similar done as the medical advice seems exceedingly cautious but it looks as though I will have to make it up as I go along. I feel ready to try some outdoor leading as soon as the weather improves.