has anyone thought or is running one of these setups? looks slick but I wonder about the drag??

Dual Transom Mount Water Pickup Machined aluminum with brass fittings. Easier to install then through hull units yet works the same. Comes with stainless hardware.
.8"long from transom(20mm), .84" wide (21mm), .97" high (24.5mm) $7.00 each

or the Dual Flush Mount Water Pickup