Think I figured out the stock flasher enough to go resistorless and not have to get a new flasher (I dislike load resistors if you haven't figured it out by now).... It should just be as simple as cutting the trace on pin 7 of the u643b chip (the bulb out sensor pin). I'll test in about an hour when I go to lunch break. Since I know it hyperflashes on my vehicles, if it doesn't then I cut the right trace (the chip doesn't have a pin 1 marker for reference).
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It works... Kind of.... Flash speed is reduced from standard hyperflash to about halfway between hyperflash and stock.
I'll have pics of the trace cut after work in case that speed is acceptable to some people. My phone can't get that close of a shot.
Moar experimenting is in order.
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Here's the pic of the trace to cut (circled in red)... my computer was giving me fits so after a stern lecture... It's reversible with just a dab of solder on the cut section to re-complete the trace.