crich wrote:
Call me crazy, but I was thinking that bar frets would not introduce as much backbow as the "T" type frets for they wouldn't be "forced" into the slot.

If bar frets were consistant in width then it's a matter of finding the right saw for a snug fit. Does anyone use these on thier builds? Clinton
Clinton,
You can certainly cut a .050" slot and put a .050" bar fret in with a little CA on the ends. With a properly adjusted truss rod, they will work fine in that application as long as your are not trying to correct a backbow situation that can't be addressed by the truss rod. A single action truss rod will not correct backbow. If you have a double action truss rod, that works for either front bow (caused by string tension) or backbow (generally caused by excessive moisture in the neck).The backbow situation is mentioned because typically bar frets were used in Martin guitars prior to 1935 and these guitars had only a piece of ebony for neck reinforcement. Bar frets of varying widths can be used to correct this situation when there is no adjustable rod. In this application, they are very much a structural component of the neck much more so than a standard T-fret installation.
If you've not played a guitar with bar frets, you might try one first. It's a whole different feel than T-frets and one that takes some getting used to. It has to do with the proportions of the bar frets relative to the T-frets we're so accustomed to. Generally bar fret profiles will be somewhere around .050 wide and .040 tall, whereas most T-frets are about twice as wide as they are high. It's just a different feel. I happen to like it, but some people can't get used to it.