Concord wine?

[willp58]

It's now Dec 1st and my "batch" has now settled down.
I racked this down once - 3 weeks after it started.. It looked like all activity was gone by then.
Today I sampled a little and found it to be yes a little "grapey". This is a dry wine made from Concord grapes.
All in all I think it's a keeper.

Ok now my main question:
Can I add some sugar to this wine only if I want to on a glass per glass basis??

I was thinking some Splenda instead of regular sugar. Does this make any sense??
Has anyone tried this?
Thanks,
BP