tom- kind of an unfair review of a product you haven’t tested out. i’ve reviewed this product before on ST, but have now used it in a half, olympic and sprint. it works really well, much better IMO than any profile type front mounted system. holds 40 oz. of fluid (2 water bottles) and is easy to refil on course from an aid station if needed. during sprint tri last week i put 1/2 bottle only and was able to get quick sips as needed never getting out of aero position. Speedfil company is in san diego and claims to have tested product out in the low speed wind tunnel there. seems to act as a fairing. on my friends P-3 it almost touches downtube, on my BMC its a prefect fit against downtube. i find it easy to clean as any other system w/ only one large nut on cage to remove. i really like this product- i dont have any affiliation w/ speedfil. anthony