That's right NNB, BUT you are talking about a Private Operation.
As an example as I said earlier, any company can own and operate an experimental aircraft as I understand it carrying around non-paying passengers or employees... so if you are not operating for hire or reward which must be the case for PJE then an experimental aircraft can be used. ??? The only issue I see is that if the Parachute Mob dictates that a certified aircraft must be used.
Same as the PVT versus Commercial Ops argument for Para ops, the same for experimental, you can't fly them for hire or reward.
At worst, no tandem ops for non members in the experimental aircraft on the face of it. ??? I can't see any regs saying otherwise.
I would liken this to the traffic watch helicopters operating over the CBD at NIGHT with SINGLE engine. You can't do that in charter, but can because it's a private aircraft. No CPL required either.