In the woodworking world, that pattern would be called 'curly birch'.
Tiger Strip is used only for quarter sawn oak, different phenomenon all together.
Anytime you get curly, fiddleback, crotch , or feather grain, it is cause by the iridescence of the wood. That is, the pores are so close together each pore tricks the eye into seeing a different color. Like the bright patches on pigeon throats.
Tiger strips in oak are caused by a radial grain, radial to the center of the tree. Lacks the FIRE of iridescence. But I swear I saw an M1 Garand pic here somewhere with that pattern.
The more pigments you put on the iridescence, the more you will cover up the FIRE. .
I don't know what the recommended chromium trioxide does. Probably a bleach, that will allow you to paint on lighter color stripes? Not the same as iridescence.
One of my fringe benefits as wood worker was the thrill of spraying on that first coat of lacquer. Stand back, the iridescence can pop so bad as to hit you in the eye. Just like the fancy walnut buttstock I just made, see my thread in 'stocks'.
Here's a llnk to my photo site, to see the stocks in full size, all their glory. The Model %O win is Fiddleback maple, the '94 is 'Crotch' grain, from near a fork in the tree.
http://imageevent.com/bigchriscase/misc scroll to pics 12,13,14,15.
1Thanks
Linear Mode
