I'm a "code starer" that uses experiments to inform the "staring" phase. I look hard at the code, think to myself "this can't happen... unless", I formulate the hypothesis and then use experiments to prove/disprove it.

While the shotgun approach to science (run random experiments and see what correlations fall out) can be useful at times, there's a benefit to figuring out precisely what you're looking for before you start looking.