I have a Jet Proshop. I have no problems with 4/4 oak or maple. I have no experience with 8/4 stock at all. I have some cutting boards on the menu and wanted to get started tonite. I milled an 8/4 hard maple board as usual, then went to rip to final width on the TS. It didn't like it very much. Sounded very underpowered and bogged down for the task. Burned it pretty good as well (I know maple has a tendancy for this. I usually don't have this issue with 4/4). Rather than push it, I closed up shop until I get some feedback on this one. Am I asking too much from my saw or is there another issue I have to deal with to get it correct? As a sidenote, I just cleaned my blade (Freud Premier Fusion) about a week ago. I also double checked my setup. My blade is ~.001 out and I have my fence toed out ~.002.