Derek,
If it's a really crap chisel, which they are most certainly not, maybe it could be an "issue" as you put it.
Putting things into perspective, if say the back is 5 thou out of flat over its length, how significant is that in relationship to,
(i) the accuracy and positioning of the jig?
(ii) the skill of the user?
(iii) the limitations of the Mk 1 eyeball, in particular (and no disrespect to you DW) a pensioners Mk 1 eyeball ?
If one want to split hairs, one can undoubtedly give it a good go with said chisel and 'perfect' flattened back. It might make the difference between success and failure, but I doubt it'll make a significant difference to the average woodbutcher like most of us mere mortals.
So DW, I'll reiterate what I said and you'll save 4.75 days of work!
cheers
Ike
If it's a really crap chisel, which they are most certainly not, maybe it could be an "issue" as you put it.
Putting things into perspective, if say the back is 5 thou out of flat over its length, how significant is that in relationship to,
(i) the accuracy and positioning of the jig?
(ii) the skill of the user?
(iii) the limitations of the Mk 1 eyeball, in particular (and no disrespect to you DW) a pensioners Mk 1 eyeball ?
If one want to split hairs, one can undoubtedly give it a good go with said chisel and 'perfect' flattened back. It might make the difference between success and failure, but I doubt it'll make a significant difference to the average woodbutcher like most of us mere mortals.
So DW, I'll reiterate what I said and you'll save 4.75 days of work!
cheers
Ike