PS have been shown to stunt and likely stunting will not be controlled by normal numbers of small mouthed predators (SMB , YP , HSB). Of course that depends on the BOW and the species populations.
I do think PS are an under used species for pond owners. I would put PS ahead of (not as apt to stunt) both BG and GSF. The use of forage/predators like GShiners which have been shown to be egg and fry eating could help in that regard.
http://forums.pondboss.com/ubbthreads.php?ubb=showflat&Number=156359&page=1 PS traits � Willis , Cody , West and others with studies
http://forums.pondboss.com/ubbthreads.php?ubb=showflat&Number=181958&page=1 PS Willis and most of the rest of us
http://forums.pondboss.com/ubbthreads.ph...true#Post199423 PS and SMB + other species Willis , Cody , and the rest of us
http://forums.pondboss.com/ubbthreads.ph...true#Post242440 PS with Wills (this may be the one you want to start with) and the crew
http://forums.pondboss.com/ubbthreads.php?ubb=showflat&Number=260475&page=1 PS long thread by AP , Willis and the crew � great pics
http://forums.pondboss.com/ubbthreads.ph...true#Post296225 PS reproduction Willis , Cody and others