Update on these, as someone on the other forum asked me for a recipe and I gave a link back to here.
Parsnip has finished at 0.992 and I have just racked, added campdens, de-gassed, added sorbate and finings. After racking I had 4.5 gallons, didn't feel inclined to top up with water so found a half gallon bottle.
I never got around to adding the extra gallon of water to the Fruity Pink Wurzel but at 5 gallons that would give a calculated OG of 1.110, which is probably a bit too high for a Wurzel. SG is now 1.010 so I've added 4.5L of mineral water (freeing up a PET), bringing the calculated OG down to 1.090, and it's back in its warm corner for another couple of weeks.
The Wherry was bottled at 1.014 on 17th Jan and has now carbonated and cleared nicely. The majority has been put away for another month or so but initial tests have been promising.
Racking the parsnip leaves me with the obscenity of an empty fermenter, so I will endeavour to rectify that before the day is out.