Most of the polys tend to be very inconsistent for me, even the high percentage ones. These are two that are registered poly and have been the best for producing poly blooms here.
Crazy Mr. Jim
Greywoods Dressage Queen
A few poly blooms on other cultivars...
Odd's and End's
and a high percentage poly seedling, I'm not working with or for poly's but have developed a liking for this one, almost every bloom is poly, it's tet and has a great plant.