Weve been running Balancers and Gelbviehs for about 15 years now, when we decided to get back into the cow herd our neighbor that rented our pasture at the time was running them, and as a lifelong cow man who had raised every breed out there, we valued his opinion and we really liked the looks of the cattle themselves. We try to stay at about the 50-50 ratio of Gelbvieh and Angus on both the cows and the bulls, we feel like coming at the cross from both directions helps to get the good traits and minimize the bad. Dispostion is as good or better than most Ive been around and we dont do anything special with them, theyre about as good as you could ask for as far as mothering, just enough fight in them to protect the calves but calm enough to let us up and tag them, for the most part, theres always gonna be a few crazies. Milking is great, although like someone mentioned there are some problems with getting bad teats, but we have a few cows that have a bad quarter and they raise just as big of calves as the rest, and weve had more than one thats raised a set of twins by herself, again come weaning time you couldnt tell them from the others. Low birth weight is great, we rarely have to pull one unless theres a problem, and weaning weights are right up there. We run both reds and blacks, and red and black bulls, we have a few greys but none have been rat tails. Doesnt seem like we get docked but theres alot of guys who run mixed herds around here.  I saw someone mention about them not staying in and I can say that with ours it hasnt been an issue, in fact we joke that if theres the illusion of a fence, theyll stay in. Our one neighbor had some salyers (sp?) and I swear they were part deer. Its been awhile since weve fed ours out but they seem to gain faster than straight angus either red or black. One of the things we like is the longevity of the cows, weve got a couple cows that were bred heifers when we bought them and arent all that far from driving age, and are still kicking out great calves every year and stay in good condition.

I think youd be really happy with the Gelbieh in your herd, Ive never heard of anyone going back to straight angus personally. We deal alot with Flying H genetics in Arapahoe NE. I think they are one of the top Gelbvieh breeders in the country. Dick is a really nice guy and would be more than happy to answer any questions you have, and I know they are fooling around with some simm/angus and simm/gelbvieh/angus crosses as well. Weve never done anything with Cedar top personally but Ive heard they have good stock. Also Werner cattle out of Arapahoe NE is another one weve dealt with, and have been pleased. 
 
http://flyinghgenetics.com/