close stance, altering depths between full and parallel.
wide stance squats that are gear preferential are not power squats. power squats are just another way to say parallel squat. oly squat is another way to say full squat. many say that in power squats you sit farther back than in oly squat, but that's wrong. the difference is only in depth and the factors that includes. although, some people full squat improperly by not sitting back as they descend, oly lifters dont.
FYI, wide stance stuff shouldn't be applied to non-equipped lifters. dont get me wrong, they can help, but they will not exceed normal stance and mainly originated for maximizing gear.
basically, im saying to do close stance stuff, and learn from there.