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A couple of months ago, I bought a new Port Cable PCB375SS at Lowes. Relied a lot on the brand name. Maybe that's a mistake. At any rate, I noticed several posts here referring to blade wobble. My first "assignment" was kind of a quick mass production job to cut a bunch of cardinals from 3/16" balsa. Not real tough for me or the saw. That said, when viewed from the front, the blade's movement just didn't look right. Seemed like there was some sort of lateral movement. Took it to Stanley / B&D shop and they said "it's normal." Eventually, I videoed it. You can see it here: https://www.hightail.com/download/dDZGeVdrMVgrV3hBSXRVag In the last couple days, I started opening up covers to try to learn more. This is what I found: Took rear covers off the saw, which exposes the back end of the top and bottom rocker arms, plus the connecting bar. Tried wiggling the arms side-to-side. No movement. Seemed pretty tight. Looked down tube housing upper arm towards blade end. Could see the "Special Bolt" on which the arm rocks. Access is hidden behind Porter Cable label on right side.. Very reluctant to access. Looked down tube housing lower arm. Can't really see through. "special bolt" is accessible. Looks like it can be removed or whatever with hefty hex key. Looking again, it appears that two different size hex keys are used here. No idea why. Again, didn't touch it! Removed plastic cover from left side, opposite motor. Blade is under normal tension. Again, everything seems pretty tight. Tried rotating the "eccentric" as motor would turn it, observing blade. At table level, At start of up-stroke, blade clearly shifts to the right, about 3/64". No slop to blade at that point. During upstroke, blade remains in that right-shift position.No real slop. At start of down-stroke, blade clearly shifts to left. During entire down-stroke, blade stays in the left-shift position. If "eccentric" rotation is reversed so that blade direction is reversed, blade position shifts. Example: during down-stroke, when blade is in its left-shift position, if I reverse direction, blade will shift to right. Further note - resistance is encountered when blade switches from down-stoke to up-stroke. Opposite holds true also. Tried to observe action of connecting bar at rear. Checking at about the midpoint of the bar, On the bar's up-stroke, it shifted to the right side of the saw. Conversely, on the bar's down-stroke it shifted back to the left. I tried to gauge how much movement there was at the front of the arm, but found that much more difficult to do. My guess is that the maximum shift was 1/32". I finally gave up trying to gauge the movement at the front of the lower arm. Bad view, angles, light, and all that stuff. I tried to gauge how much movement there was at the front of the arm, but found that much more difficult to do. My guess is that the maximum shift was 1/32". I finally gave up trying to gauge the movement at the front of the lower arm. Bad view, angles, light, and all that stuff. I'm trying to avoid returning it to Lowes, but I think I'm just about to that point. Any comments from anyone?