Originally Posted by
TURNMASTER
A curved platen is a good idea and recommended in the $50 Knife Shop (Wayne Goddard). Just secure it in an appropriate manner. clamped or bolted should work.
What material are you using? The idea for lengthening the handle is good. You could also have a small extension TIG welded on to lengthen it and ant have little or no effect on Final HT. Also silver solder may work, but I have no idea how that would be done and still get the correct HT. Maybe silver solder, full anneal then heat treat?? I dunno how that works out but a few knife makers do it.