With father's day coming, my wife has asked what I would like this year. I was thinking a Torhans aero 20/30 might be a nice change from my current BTA (x-lab torpedo with standard water bottle). Is there an actual speed advantage/disadvantage to changing to the Torhans system? While it's sort of a guilt free present, I would still like to know it's sort of well spent money. Any feedback is appreciated.