Hi Kwas,
For the paramount you do need to check "reverse dec output after
meridian flip"
No sure why you need to use POTH, for reference some screen shots of the setup I have, I use the current SGP release and the latest PHD2 release (dev version if available).
ASCOM setup
Flip Settings
SkyX version
The latest daily builds 10.5.x onward caused plate solve centring to mess up.Will look into this soon and try and figure out what the issue is, not looked on the SB forums so not sure if this had been reported. Like some of the new features in the latest SkyX so would be good to figure out what is wrong.
Meridian limits
East
West
You limits and time past meridian need to match, was caught out early on by not having wait for meridian ticked, taking 30min subs and a limit of only 20mins past and the next 30min sub started 5mins before meridian.
PHD Guiding TAB
Hopefully this may be of some help.
Thanks
Trevor