I have owned a Fusion , Nucleon and now a Speedster.
The Speedster is in my opinion less "reflexed" in my conventional understanding of a reflex profile than the Nucleon, as evidenced by the force required to pull the trimmers back in - the Cs and Ds remain more loaded than on the Nucleon.
What this does to the centre of pressure I don't know but Ozone have clearly approached their reflex profile differently to Dudek.
We all want to know can we fly the Speedster hands off like the Nucleon when it gets funky. My experience is yes but be prepared for the wing to move around a lot above your head - really feels like you're surfing the air. This for me is infinitely preferable to the lateral oscillation the Fusion was prone to (a result of the wings excellent roll characteristics) but not as confidence inspiring as the Nucleon.
I fly with Mark and Seymore regularly in thermic conditions and at the moment I feel more comfortable actively flying the wing with trimmers around take off - full slow, then trimmers out to dash to the next thermal.
Take Friday for example - 13:00 - 15:00 (to quote Mark "booming conditions") I flew at take off - full slow. After stopping for lunch at Seymore's friend's place I flew the hour home full fast (still the odd thermal but not everywhere!) and enjoyed chucking it around on the wingtip sterring.
I'm the one Mark refers to who had a collaspe on the Speedster. I was trims out, no bar and I think I hit some sea breeze convergence. What struck me was that the wing did not turn at all. I don't know how much deflated really, only that I had a definite sensation of falling a second and then bang completle re- inflation before I could reach the brakes. Anecdotally I have flown in very rough conditions on the Nucleon and never had something similar happen - but if the Nucleon did go I think it would be much more dynamic than above.
I have found the Speedster to be a dream to fly. I nearly always reverse launch often despite "nil wind" conditions when others use a forward. I set trimmers an inch past take off and up she comes will constant A pressure and a little trot backwards, the wing is overhead and I'm off.
The glide is fantastic even on full fast. I always land trims fully out. This is especially good on nil wind days or if I'm not 100% of the wind direction on the deck - loads of airspeed to convert to lift and precise flare control through firm brake pressure for landing.
My advice - speak to as many people as you can and ask them how they fly their wings and why. Then demo one.