OK, so I tried the factory reset and then a save to owl on v14 on the user patches and it didn't seem to affect anything.
I then reverted to v12 and as before all the patches had noise on them, however, in the noisy v12, doing a factory reset and then a save to owl removes the noise on all the built in patches AND the user patches are ok.
So this is where i want to be. I can load new user patches into the slots in v12 no problem either.
I then, out of interest, reinstalled v14 and this time, the user patches were working ok and so this left me with a v14 firmware with everything working ok... and able to load up different user patches ok..
But if i press factory reset and a save to owl when on v14 it messes up the user patches, adding the noise back. (but only the user patches)
I then had to revert to v12 again where initially everything has the noise on, and then press factory reset and save to owl, which then clears it all up.
I can them go back to v14 again and its ok as long as I don't press factory reset....
So maybe there is still a noise problem buried somewhere around the factory reset and what it does to the user loaded patches?
For now, i'm gonna leave it on 12
As an aside in genenral
A few patches just don't sound right when I load them on v12 or v14
The cloud delay and biased delay patches don't seem to work properly though, just give me very noisey delay rather than what the samples on the patch pages suggest it should sound.
The conny patch gives me all sorts of random noise and craxy cpu reading of like 605%, 793%, 191% etc... so am not sure this plays nice with my owl!