Anyone else having trouble with Arm lift hold/adjust on the newer machines? I am aware that Excalibur, as well as other higher end saws have that screw in the back with locking bolt to adjust arm tension to hold it up. I have an Excalibur and a new Jet. That bolt is there on both, and also on most other higher end saws. That bolt when loosened to ease arm lift provides little relief with tension or lift. Not on either saw. Yep my new Jet also is still hard to lift up even when that rear screw is relieved. In fact it can be completely removed on the Excalibur and there is no change in tension. Even after a year of use. Does anyone have an Idea?