Been looking for a TLB. Lots of posts about these. Comparing specs between the two sizes main differences are open center vs PFC hydraulics. The 410 has slightly more backhoe dig depth and hyd capacity than the 310. I was surprised that the loader with the same size bucket has the same load capacity on both models. Was expecting the 410 to have more capacity. I've used a 310SE and at times digging rocks will run out of either hoe or loader capacity. What differences have operators noticed that have used both models?? Open center or closed center hyd have any better performance?? Overalll differences between the two models??