Hi, i have a scuba pro knighthawk bcd, i purchaded in 2006 new, i have 30 dives on bcd, the last time it was serviced in 2011 and i havent been diving since then. The bcd is in excellant condition very little signs of wear, i always rinsed it off after ocean dives and kept stored in dry cool place. Im looking to trade to a similar bcd in size large, my current bcd is a medium size and is too small. Im looking for straight up trade, thanks.