I'm just on my way through my first guitar built in radiused dishes, and there's a couple of questions I've got for guys who've done it before.
Prior to using dishes I used to add arching to the top by measuring the curvature on braces. My previous guitars have got 3mm curvatures (the mid point of the brace is 3mm higher than the ends) meaning the tops are pretty flat. The top I've just braced and started to voice was done in a 25ft radius dish - and I'm finding it pretty stiff (I expect due to the extra arching). For you people who've experimented with top arching - is this normal?
I'm also having the normal fretboard extension queries. Prior to dishes my tops would go on after planing the neck block to an angle where, if a straight edge was put on it along the centre line of the guitar there would be about a 1.5mm gap between the straight edge and the top at the point where the bridge lies. The increased arch on this instrument means the gap is nearer 1cm, not a problem - as I've decided to do an archtop style fretboard extension with a wedge. But for future instruments I'd like to know what to look out for and a way to stop this happening.
Sorry if that's not worded well - it was a late night last night, and it's not the easiest of stuff to explain!
Cheers for any help