The hybrids not performing were almost always non-GMO's from smaller companies.  It wasn't super common, but there have been a few that didn't keep up over the last decade.  Not really looking for ones that are good, just trying to make sure they aren't duds and get rid of them early on in small trails.  All these pioneer numbers are very new and were supposed to be the latest and greatest, but not really impressed with any of them except 0075.  A good dealer can usually give some insight how they will react, mainly looking for great emergence and ability to handle some stress.  

As for long term testing.  I'm about done testing for a while.  I've tested striptill vs conventional till and now notill quite a few times.  I've had a handful of very small comparisions, maybe a side by side that I won't post, but doing the same tests 15-20 times over a five year span and always having the same results let me feel confident.  On to the next chapter so to speak...