So what's the deal for TG16 owners? Can we use PCE or DUO (either Japanese or US) controllers? The reason I ask is because I'd like to get some avenue 6 game pads but will they work or is there some kind of adapter I can buy? or am I stick having to buy a Japanese duo? and If I do have to buy a japanese duo, is there a change (other than controller) from the duo, duo r or duo RX that matters?