I got my wife the 7.5FX wsd to replace her 7100 hybrid. She's faster and enjoying the ride more. I put barends on and upgraded the saddle to the Terry Fly. Added a saddle bag for tube/levers/cell phone and replaced the reflectors with blinkies. The Bontrager tires(700 x 32) can go up to 120psi which is what my 700 x 23 roadie tires take. Very nice bike. The suspension fork and seatpost on the old 7100 were just added weight. The FX can also take racks on the front and rear and have plenty of room for fenders.
I'd like to see pics of the drop and aero bars on a 7100, too.
An aggressive riding posture is that of a roadie riding with his hands on the drops, head down low. Seat higher than the handlebars. The hybrid bikes have you in an upright to mostly upright position. The FX bikes have you leaning forward more.
7.5FX wsd
Aggressive position