i have only had limited contact with any "certified" instructors.........so i may be a little biased........but i guess this thread is all about be biased, since it pertains to choosing one over the other.
the "certified" instructors, tend to teach EVERYONE the SAME. they have a specific pattern that they try to teach. (before i get bashed for this, i know there are exceptions, but i'm speaking in general)
the "certified" instructors, no matter which level a play is at seem to want to start them all the way over and make them what i call a "cookie cutter" player. i never actually paid a "certified" instructor, only talked to some (i will not mention) to see what they were all about. instantly before even really seeing me play, they wanted to jump right in and try to reteach what i was already doing. also alot of the "certified" instructors are "perfect stroke" preachers. i.e. everything has to be perfectly in line, no dropping the elbow, etc, etc. also, i get tired of organizations trying to recruit students like its a cult or something. saying things like "here at the (fill in the blank) we teach the such and such method, because everythin else is inferior" or "we'll teach you how the pro's aim" yet anytime you talk to a pro........they tell you the exact opposite.
on a positive side, i do see why this is helpful to the general pooplaying public, as it probably gives the average poolplayer the best chance to be an above average player.
as for the non "certified" instructors, these are the ones i've had the most experience with. from a local A player, to jimmy reid, to currently tony robles, and only a limited (although i hope will be much more) exposure with hal houle.(before anyone asks, the answer is no)
none of the above mentioned people that i have dealt with ever tried to teach me like i was just some average player off the street, and give me the same monologue they give everyone. with the exception of hal(since its over the phone) all of them watched me play FIRST, then decided where to begin. they also all understand that each player is different and may have a different stroke, ticks, rythm, etc, etc. all of them basically had the same attitude, if you can make the shot, and do what you want with the cue ball, then they didn't care if you stood on your head while you were shooting. i've also learned a great deal from watching keith play.
i also picked guys like jimmy and tony because they have the experience playing under pressure, in tournaments and action. i plan to be playing at the open/pro level in the near future, and i want to learn from guys who have been there and can tell me what was going thru their head, and how to overcome the negative thoughts that creep up when you're playing in the finals of the U.S. Open or the BCA Open.
also, call me a little funny, but i have somewhat of a mental issue about taking instruction from someone who doesn't have the background to back up the knowledge. (no offense meant to anyone here) but if someone that doesn't have ANY real competion experience starts talking about how to handle the pressure, i don't want to hear it.
the "certified" instructors also tend to be inside the box thinkers. i like to think outside the box, and most of the non "certified" instructors are more on my level of thinking.
i think that about sums up what differences i experienced, and what influenced me to make the choice i made in instructor/s.
thanks
VAP