i have an old xt50 that I have been using as a deco reg but not in the last 3 years.My daughter is now getting into diving and I am debating on getting it refurbished and adding a scond stage or just buying her her own regulator. Is the older xt50 still considered a good reg to most out there. I love it but it has mostly as a deco rig. What do you guys/gals think. Get it refurbished or just get her something new?