You: 'it will be wider'
Hondo, it was YOU
that said that. I agreed
that this is often
the case. But as you stated it, as a blanket statement
, it IS incorrect. As you're obviously so adamant it isn't, then please explain why you have this belief. And I will find you some pics... I have a few specific cases in mind of client's horses. Basically, if there is any mechanical pressure on the crack, it does tend to be levered further open at the base, regardless where it may have started. If there is no mechanical force acting against the wall/crack, then it tends to stay closed/narrow.
As to the other 'disagreement' about cracks thru hairline being permanent, I believe I said something like it wasn't *entirely* correct. That IME they were indeed fixable as a rule, though conceivably, in rare situations they may not. I think I gave more info in my reply to Gotta about this.
Re "'other' is the foot circulation thing,", I don't actually understand what you're saying, except that it seems you're trying to say I'm disagreeing with what Bowker has said, to discredit me(not that I think anyone's infallible & should be taken on blind faith, but that's irrelevant here). But on the contrary, I have not said anything of the sort! Just the opposite in fact! Basically I said that most of my information about circulation in the feet comes from Bowker,
and that the vast majority of blood flow is NOT needed to feed the hoof, and that if it were compromised to the great extent that it did restrict/damage growth, then in OP's horse, there would be evidence of weak walls, etc. By all means, if you have read something that contradicts this, from Bowker or otherwise, I am all ears!! Please tell me what that is, rather than just arguing about it though.
Please also provide information about what you have stated in your last post above, as this is also a bit... contrary to what I have learned.