I have used a TR86 since 1990 on 1200 to 1400 acres. We run about70 cows, and have allways been able to bale enough straw. If the straw is very dry (grain less than 12%) you will find the straw hard to pick up and bale. If the straw is too dry we drop the straw for baling after dark. A TR 86 or 87 will likely put though as much barley as your two 914s in a good day.Good luck.