XML or GAU?

[caldabolg]

I've been looking into gauge creation and editing for awhile now.
The million dollar question is....(drumroll please) XML or GAU. XML seems to be a much more "open" way of creating gauges. GAU seems to be editing current gauges. Which is cool.
For my plane, I really dont need any kind of special gauge. So I could just edit and clean up gauges that I would need. What are the pro's and cons of XML and GAU? How would I edit an existing gauge?

[myshelf]

.gau offers still more options, but to make use of that you have to write or edit the source code (usually C++) that is seldom published. (Note to programmers: i'd like to see more of that)
editing bitmaps as implemented in existing .gau files can be done with gau2bmp, but the bitmap format has to remain that of the original.
basicly all that can be done is just "cosmetic" changes.

.xml gauges can be created from scratch with a simple editor like notepad and a picture editor like paintbrush.

[caldabolg]

Where would I get the latest version of gau2bmp?Thanks by the way(:

[myshelf]

http://www.simviation.com/fsdesign_panels1.htm