I know that there has been talk about using a hi lift on the discharge opening side. But I found that it seemed like my middle chamber on my 2004 20hp 48" Tiger Cub always seemed to have more grass stuck in it. I have taken the "turbo baffle" off. It was useless! I have used the following blades set ups. 3 Scag stock blades. 3 hi lifts. (The 3 hi lifts suck up too much power.) Stock scag blades on the left and middle chambers and a hi lift on the discharge side. The outside chambers did not seem to hold as much build up as the middle with the above set ups. I had been running the hi lift on the discharge side but thought that I would try and put the hi lift in the middle chamber with the stock Scag blades on the outside chambers to see what happened. What I found was that the middle chamber holds no more build up than the outer chambers. I also found that the discharge velocity is higher than with the above setups. It seems to defy logic but it works. I scrape my deck 1-2 times day to keep airflow at the max. Its all about the airflow and sharp blades. Has someone else with a Scag Advantage deck already tried this? Would they report on their findings as well?