[crockpot]

i don't think this is a bad idea, but it seems that your goal should be more focused on identifying borderline hands for a given situation. while playing aces and kings will help your game, it won't teach you anything about playing positive EV hands since these hands should never be folded preflop at limit hold 'em.

what i would recommend is something more on the order of repeatedly dealing yourself borderline hands like AJo or KJs in early position and seeing how you do with them. this would give you an idea of what the cutoff for hand selection in this position is.