as I said: you can watch HD+channels on a SkyDE videogiard/NDS card
I dont know what informations your receiver/pc-software shows but NO caid 1833 = NO SkyDE via Nagra as it is used here on the CS-server
My Log was from Oscam and regardless of your cards or CS-subscriptions and any priority/ignore/replace rule, Oscam in dvbapi-mode shows always all available caids available for decoding
because I have also a SkyUK subscription here on the CS-server, I know that it is also possible to share Videoguard/NDS sharing is also possible via Internet, but the possible response times have to be within 600ms, or you will get freezers, while Nagra sends the code for the next encryption cycle (each cyclew around 7-8 seconds) directly with the current/active encryption, so you have around 7000ms to get the codeword from the receiver - so Nagra is much more reliable even on slower Internet connection/occupied servers. So I would not suggest to change to NDS-system as long as it is possible to use Nagra (should also require less cards for decoding on the server *g*)
and also on the SkyDE NDS-cards the HD+ channels are not for free. You need a appropiate subscription for HD+ with the same charges as on the original HD+card (50€/year)
If you want to watch HD+channels (Sport1 HD etc) via the CS-server extend your subscription and add HD+ (1€/month or 9,60€/year)