I'll check voltage drop on battery tonight. I have a number of theories about what could be the problem such as ignition switch drops voltage to 9V during crank to IGN (which I could relay the IGN prongs to boost it back up to 12V), the mini starter may be draining to much voltage (but to just 9V???) or since my battery is in the trunk the 2/0 cable isn't carrying the required load or my battery could have went weak though I do all my testing with the battery charger hooked up.
Josh