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ramon

Crossfire riser pressure vs Alpha/Cobalt

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I jumped a crossfire 129 this weekend (~1.8). I liked it very much, it flew and flared very similar to my Space(Alpha) ...except the riser pressure was heavier.
I was loading this at 1.8 versus 1.5 on the Space and so a small amount of riser deflection caused a great performance change.
Is there any advantage/disadvantage to heavier riser pressure on specifically a small canopy?
I can only imagine that a similarly sized Cobalt (Alpha/ space etc) will have lighter riser pressure yet flare about the same (midlength brake control point as opposed to deep flare on samurai or shallow flare on Stilleto), and other differences will probably be minor and only expressed by expert canopy flying.
So..riser pressure...is it just preference....or will the center of gravity under the canopy effect something, or is there some other advantage or disadvantage in riser pressure?
thanks
bloo skies
ramon

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The amount of pressure doesn't have anything to do with my decision making process; it's all about the amount of turn induced by a set amount of deflection. I have never jumped a sport-sized parachute that had "too much" front riser pressure for the way I fly, but I have jumped plenty that just didn't act the way I like in a riser turn or dive (my wife's Stiletto 120 for example). This, I find, is MOSTLY due to the way a canopy's brakes are set. Too tight and they will deflect the tail down while you are diving, thus hampering your clean-carving dive. Riser diving is also greatly affected by a parachute's trim and where a person's weight is carried. Dan could answer you better in technical terms, but "feel" is what is important to me. I can jump and swoop anything, but to properly "dial in" a main takes a bit of practice. I generally try to set-up for landing the same way everytime I jump. I know how high I want to be and where I want to make my last turn. I know how I sit in the harness and the way I set my slider and chest-strap. Lastly, I know how I am going to grab my right-front riser and how far down I need to pull it in order to "set" my carve. For my current main canopies (Cobalt 75 and 85), that point is where my dive loop is right at my eye level and my elbow is resting on my lower right ribs. Every parachute design has a different rate of turn in a front riser dive and you must make test jumps in order to locate your "sweet spot." I know where mine is, but you might like a different type of turn (i.e. more snappy or more of an easy turning carve).
Enough of that. Personally, to me, the Cobalt and the Crossfire fly very similar. To me, the Cobalt flies almost identical to the Alpha, but a little less rigid. Riser pressure is the same, at least in my experience.
Chuck

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