Just a pax here (with some GA experience).....
You could learn all you need about CB avoidance flying around Florida (in daylight) at this time of year.
Coming off the Atlantic into KMCO in a 744 at FL390 a couple of weeks ago - as we approached the coast (Canaveral area) we cruised past a CB that was already topping above our level, and you could see it growing as we flew past - a sobering sight and one that showed me why you would never try to outclimb.