I'll go back to my original post and ask again what is most important to you? If I'm reading this right it's to get productive cows that raise you a good big calf every year, on time that you can sell or take replacements from. Maybe make a list in order of importance to you and then go on a bull search that fills those things in your order.
The thing I do like to do with the EPDs is read those $ scores they have as they can be a good overview of what a bull has to offer for the overall areas that one is trying to improve and the EPDs that are used in each. $M for maternal traits, $W for weaning and calf traits, $F for feedlot value after weaning, $G for grid value of carcass, $B for Beef value and finally $C for combining all the $ EPDs as a combined score.
I read in another post that your cows are in the 1400 to 1600lb range, or maybe you used that as an example, but if they are I believe your cows are more than big enough. Maybe that's the norm in your area, but to many on here, that's probably an elephant that would eat them out of house and home. You also mentioned culling when things go south on them, and that's a good thing, in my opinion, to move on from. Nobody wants things to go south on their cattle, but when they do it's better to cull and replace than hope something better happens. Hope is not a strategy, ever.
You also mentioned cows up and dying on you? It scared the crap out of me and I hope this is a 1 time thing, or extremely rare...not sure what to think about that as I don't have context. Maybe I read way too much into that statement.
One thing that I've noticed while watching some of these bull sales is there are several bulls, probably about 8, that show up as sires in just about every Angus sale I've checked out. Off the top of my head, Jindra Acclaim, Renown, Resource, Payweight, Hoover Dam and I'm sure I'm missing a couple. While they're great Sires and obvious choices to get sires from, it's a little scary when almost all of the seedstock operations are using them. Is it possible that all of this leads to some type of inbreeding or one of the major Sires being found to be a carrier of something that is awful and ends up in large percentage of the Angus herds. I bring this up as an ex-dairy guy where some 90% of the US holsteins trace back to ABS Chief or SS Elevation and Chief was found to be a carrier of some genetic defect. (below is the link) So maybe it's time to look at bulls that aren't from those main bulls mentioned by all the Sire sales and find the less used Sires and Grandsires that probably cost less and have just as good traits you're looking for.
Just two Y chromosomes exist in a huge population of U.S. Holsteins; researchers want to know what traits have been lost
www.scientificamerican.com
You might also consider adding some High Bread Vinegar (hybred vigor) to your herd. Heterosis is something that I fully believe in. I'm a fan of the F1 Baldys....I'll include a youtube video about it and why Hereford/Angus...but.. so damn ugly they're beautiful and they generally won't cost you much if anything at sale time, provided you're still bringing nice beef shaped calves to sell. Here is the video and why those 2 to me is at the 11:30 mark.
Good luck
This is the link, and Angus is at the top as it's the base breed...I guess...