We've been using solid red Shorthorn sires in our crossbreeding program for 7-8 years or so... out of programs known for 'commercial orientation' and 'performance/carcass'... no 'hairball' show stuff anywhere close up in the pedigrees of any of those bulls. Have been VERY pleased with the steer calves, and the females are just now coming into production in numbers sufficient to give me an idea how those SHxAN females are gonna work, with a red or black Simmental bull back over them... pretty good, so far...
I really think commercial cattlemen are missing something by not utilizing Shorthorns in crossbreeding programs... but I also recognize that you've gotta look long and hard, and often, far away from home to find good Shorthorns... when you can find Angus, Simmental, Gelbvieh, Herefords, etc., of pretty good quality right in your own backyard.