Dale,
Steers by most all the Shorthorn sires we used performed far better than any Angus sires we'd used in the past 10 years, and were comparable to those sired by high WW epd Simmental sires. On the female side... there were significant differences.
Across the board, Waukaru Goldmine 2109 left a bunch of nice daughters, as did Waukaru Coppertop 464; only got two daughters by Waukaru GoldCard 5042, but they're really nice.
Waukaru Orion 2047 sired terrific steers, but the daughters have been a big disappointment... hard-keeping, no-milk... nearly starve their calves. Waukaru Patent 8161 sired good steers... only one daughter made the cut to stay... will calve this fall... jury is still out on her.
A&T Captain Obvious 606S... no 'grow' to 'em... have one daughter... looks kinda like a bison cow... is an average producer... raising twin SM-sired calves this spring.
Rob Sneed '034'... steers and heifers alike were pretty good... I mainly use him over large-framed cows... daughters have mostly been worth keeping... I like them pretty well.
ArSuLu McKenzie... only a few calves by this old bull... steers were OK, no daughters have made the cut to stay, so far.
We've switched back, breeding back toward the Simmental side of the equation... even using a full Fleckvieh sire over some of the older cows this spring... Shorthorn semen in the tank will be used sparingly, and mostly on a few select halfblood Shorthorn females.