I've seen pics of the SnS capsule in the P&Ts and they're advertising adapters for it - but I don't think they're out yet.
I know people do put them in without adapters and say they're safe. But unfortunately I was unable to test this theory myself without spending the money on the capsule.
I chose a Viaggio + adapters for my P&Ts for that reason.
If you want I can PM you some links of the P&Ts and the SnS.