Thanks to Scott Crumpton's post...I emulated his awesome design...works GREAT! I used a 3x2x3 Y-fitting and split a piece of 2" PVC for the collection port under the lower guides. Also used a small piece of 1/4" hardboard cut in a half circle to block the 4" dust port and balance the suction between the two sections as described by Scott; I found 60% blockage great for my application....wayyyyy better collection than I had before.
dust collector mod.jpg