Re: [IHazySky] Wingsuit BASE jumps with Blackjack
It can give you a really painful opening if you don't take fairly agressive measures to slow the opening down. My experience with a BJ is limited to having a ZP top skin by the way.
For WS jumps I do pretty much every little packing trick I can to slow down my openings. It'll still give you a pretty brisk opening, but nothing terrible.
As an aside, the first time I did a terminal jump on a black jack I did not agressively roll my nose etc, and I had an absolutely brutal opening that had me taking a few days off from jumping to let my neck recover :/