I've already mentioned on this thread a bit about pressing and differing clefts. [page 2 I think]
My press is different from the normal presses you may associate with this... I press in a different way to everyone else, well when it turns back up from its changes I do
One of the things I knew when I set out on the pressing route was how could I get what I wanted from pressing without having ten, twenty years of experience behind me. So I went about designing a press that would in some way press based on my theoretical knowledge but do it in practice, I hope in the final change it will do this.[I'm a bit of geek
] I am lucky that I do have access to bat makers with decades of experience behind them that can help out but, as is common, you sometimes find your views differ on different things but you take it all in when they are talking to you. Then again if we all did the same thing we'd never any get variety!
There are other batmakers on this forum who I'm sure will be able to help with answers to those questions but it is an eye knowledge thing if they are pressing individually or a happy medium for a long run.
As for Hunts, I dont think it is just them, most that have a big run to do will press everything the same. Do clefts differ dramtically well that is a yes and no answer.
If the bat maker was physically picking up the clefts and running them through I'd like to think they could pick up a cleft and feel that this is a good one or have a quick tap on it and hold it back for special attention later. Alas I imagine it is some other chap that does the clefts feeding and just wants to get the job done
If you have an aim for what you want from your pressing I suggest you design from the bottom up based on a pics available. Or find a local engineering works with a few old boys in there [or down the pub] and tell them what you are after. They'll work wonders on the design and it won't be over engineered
Press pressure banded about is up to 2tonnes a newsletter from James Laver [http://www.laverwood.co.nz/newsletter/16.htm]
"In the early part of the bat making process the surface of the willow cleft is compressed with a roller, applying approximately 2 & 1/2 tonnes per square inch of pressure to the surface. This reduces the size of the piece
of willow by some 5mm and provides a protective seal on the bat that is enhanced by knocking the bat in."