Welcome to the board!
I have read your posts on the scootdawg forum, and really enjoyed them. (For those of you who don't know, Scootdawg is THE forum to go to if you want info on mainland Chinese scooters. Kiwiscoot originated a post there about the Citycom that has 391 replies and 17,836 views!)
You will probably find the Silverwing to feel quite different than the Citycom, because you sit in it rather than on it. At your height, you may feel that you have been crammed into the Swing. Not trying to talk you out of it, but just making and observation. You can modify the buttrest to gain an inch or two of additional legroom. I am 6' tall, and feel the legroom is decent but not great with the modification. It also turns it into a true backrest, which is ridiculously comfortable for any length ride!
I do think that you will like the additional acceleration compared to the Citycom. Fuel consumption will be up too. On the other hand, cruising at 100+ kph is effortless. Storage is probably better on the Swing too.
Let us know what you think of the Swing once you get it.