I know that you actually live at Table Rock, whereas I am there a total of about 15 days between April 1 and Late September, but this is the exact opposite of what I've noticed and I've traveled by boat from West of Point 22 over to the Dam on several occasions.
Every time the water is much rougher as I head East towards the dam and the size of boats just keeps getting bigger as I approach Kimberling City and further East.
What I notice is a bunch of Bowriders, Pontoons, and Bass Boats on the Shell Knob side, and the Cruisers start kicking in Past the highway 13 bridge headed east.
I know the water is much more narrow on the West side, but I barely feel safe on the Dam side of the lake because my 21 ft. boat will get brutalized by the wakes put out by the 28-35 ft. monsters
Maybe my 15 days I am there don't tell the story of the general conditions. (i'm not there on any holiday weekends, just summer 4 day weekends)