Re: [jimjenningsmpa] tailgates and slider up
In reply to:
And possibly have "slammer" slider down looking openings like you had at KL ddog? What if you got a camera on your head? Those super hard openings will give you wiplash and a sore neck for a few days minimum. You need direct control of the slider to stop the slider form racing down the lines prematurely, and indirect control as a backup for out of sequence deployment. I would suggest testing this in CH when you have ample slider up jumps if I were you ddog.
Oh, I wasn't putitng forth indirect control as a substitute for direct slider control, not at all. I believe that direct and indirect slider control can be complimentary.
Rather, I was suggesting that indirect slider control (a bite of all the lines) coluld be a substitute for some sort of tailgate-style mechanism slider-up. Of course, by controlling
all the lines rather than just the center tail, the indirect control is hypothetically not as good at encouraging the nose to open prior to the tail and thus to help prevent line-overs.
However, back to direct and indirect control and heading performance. Yes, it is true that at KL I never used direct control on over 30 slider-up jumps (well, I think I used it once when DW "loaned" me his Troll

). Since I wasn't taking longer than 6, I didn't feel the need to take direct control.
{since I didn't take 7.5 from Menara KL I didn't have that problem myself JJ!}
Direct control scares me. More broadly, sliders scare the piss out of me. They are designed (as DW says) to prevent canopies from opening. That is scary. Indirect control, I have a hard time seeing a full-on failure with it. However, at least in my mind's eye, I can see direct control causing a catastrophic opening failure with the slider somehow tangling with the canopy fabric at our around the direct control attachment point.
Yes, I'll use direct control on 8+ second slider-up jumps. However, below that I've just not felt the need for it - at least when jumping Mojos, and given the way I pack for those jumps. I think the openings might look "hard," but I'd compare then to about a 2.8 second slider-down delay. I can handle that without feeling punished, even 30 jumps in 8 days. Heck, I did 7 of those indirect control jumps in Lauterbrunnen last year in 10 hours, three of them coming out of front loops and four of the delays being longer than 7 seconds.
So perhaps I'm just too stoooopid to feel the pain, but indirect control is plenty for me up to 8 seconds or so. I even did 10+ of La Mousse with only indirect control and that wasn't really anywhere near the "bang" from even a 3.5 second slider-down delay.
I don't like snively openings as I firmly believe snivels slider-up make off-headings much more likely - the canopy up there at line stretch, not expanded but flapping in the breeze. Bad! I'd rather a bit harder opening (within reason), and a clean opening than a nice, soft snivel and an off-heading and line twists. The latter is a potential killer for many of the jumps we do nowadays.
So this is my "250 jump wonder" plea for folks to think about the impact of direct control on opening performance. As some partial vindication of my position, consider this: I did about 20 jumps from Petronas with only indrect control this year. I did (by most folks' assessment) the most consistently sloppy packjobs of anyone at the event. Not sloppy in the sense of reckless, but rather in the sense of not taking alot of time to "tidy" then; mostly in the 10 minute range, some faster.
I finished in the upper 40% of the total jumpers in the opening performance category nonetheless. Given my obvious lack of skill, and my less than tidy packing, the one variable that I had on my side that I don't believe other jumpers were doing was that I was using only indirect control. I had no off-headings more than 45 degrees in all of my jumps from Petronas.
Anyway, something to think about. I could be totally wrong on this, but until we get to 10+ second delays I believe that direct control is a potential variable that increases probability of off-headings with little justifiable increase in safety in other areas. I like hard openings; they are much better than no opening at all.
Peace,
D-d0g