Basejumper.com - archive

To avoid confusion...

open mushroom is where I would just hold the mesh and s-folded bridal... I just "made up" the term closed mushroom to describe folding the f-111 or ZP over the mesh and s-folded bridal

edit for thread name ~TA

Be careful of that "open" technique (or similar techniques) with delays. There's a guy on the list who took too long with the ZP open on his handheld PC. The drag can throw you unstable.

I personally don't like that technique at all and won't use it.

I only use it on for no more than 1 sec delays. Normally I would go 1.5 to 2 sec from 300 and would not need the open tech. Prob better to S/L if it really mattered, right?

Add:
Tom. I appreciate the comment and thank you. Constructive comments, helpful comments, lifesaving tips? are what this board is for.

This is getting off topic but, why do you use this method? What benefits are you experiencing from it? What have you noticed while using this method?

The benifit is probally only only mental. The thought Is that you will open "a little" higher. It is probally only a marginal gain in altitude. If it really mattered, I would S/L and not take that chance. I have done the same jump under the same conditions and have used a "closed mushroom" and opened just fine

ADD:
If I was taking a healthy delay, I would either go stowed, or like Tom said, I would not use the "open mushroom" due to it's possibility of makimg you unstable, I would use the Closed M/R.

I split this off the "solo BASE" thread, as it appears to be developing into a separate technical discussion.

This method can reduce PC hesitations on go and throws. By having the PC more unfolded, you can greatly reduce the chance of it staying in a bundle and doing one of those weird "end of extended bridle" hesitations.

In theory, using this technique or a variant on it can allow you to place the PC in the air, and thereby greatly reduce orbiting (which often begins with the impetus provided by the PC toss). Since the PC is already open, it pretty much can't drop into the burble (because it's bigger than the burble at these short or non-delays). So, used well, the theory is that you can get the PC pulling straight above your back, with no chance for orbiting, and thus reduce off heading.

i have a proff that that way can also hesitate...

must admit that i usaly use my pc that way below 2 secs.

why? i as Tom states the pc shouldnt carve as it already should be inflated.

I do only use vented pc´s by the way,i guess the extra air would go out from the top..

Any way can hesitate. The best we can do is play the odds, and try to miminize the chances of hesitation (or whatever else we are trying to avoid).

If I use a closed mushroom I can make sure it's out of the burble when I throw it to bridle stretch.

Combined with the super mushroom, when the PC reaches bridle stretch my weight falling away from the PC fully extends the centerline and the PC pressurizes normally.

With the open mushroom, the user doesn't have as much control if they want to toss the PC to bridle stretch. If they want to "place" the PC into the air, it's fine but it's slightly harder to throw it to bridle stretch.

Since the technique I like to use is tossing the PC to bridle stretch, and I don't like how an open mushroom acts when I do that, I prefer a nice super mushroom.

Looked at a lot of video, played with it, and decided against it.

If it's working well for others, and I do see a lot of people using this method, then rock on. I don't think there's anything wrong with it, or unsafe even. I just don't like it.







edit: typo

Could you please explain ( once again, I'm pretty sure...) what the super MS is?

I'm used to open MS on very low jumps, but I can accept any improvement...

Thanx

http://www.johnnyutah.com/supermushroom.html