rear shock upgrade for touring 2 up

[unfazed]

Hi all

Could you advise me which would be the better upgrade for the rear shock. This would be for touring 2-up.

I would guess at, with everything loaded and the two of us on the bike, would be around 28 stone / 178 KG (shhhhh, no comments please  :b )

is the R6 or S1000RR likely to be better?

thanks

I have the 2012/2013 S1000RR shock with its standard spring fitted and with a 10mm spacer just to allow a greater range adjustment of the spring for preload setting.
I had about 27 stone on it going to and from the NW200 without any issue.

I have no experience of the R6 shock so cannot comment on it.