Hi everyone, first real post here. Enjoying a little machining on a Sherline has led to some headaches with size issues, so I'm ready to buy a bigger bench top lathe. I'll be turning mostly brass rod and Delrin rod, 7-8 inches in length for most work. I imagine some longer work might be necessary sometime, but only on other projects that I dream up. For now, my focus is on brass and plastic. Occasionally I'll turn steel to make reamers or other cutting tools, but again, length shouldn't exceed more than 10 inches. A good compound slide is a must. Eventually I'll upgrade to a quick change tool post. I will have a need to chuck up pieces about 1.375" diameter to drill/ream the end. I narrowed my choices down to the Grizzly G0768 and the G4000. Same price. What are the real differences? The G4000 is much heavier yet has similar size capacities. Accessories are comparable, as are most of the specifications. Why is the G4000 130 pounds heavier? Any thoughts? Thanks in advance!