Hi,
Any chance that you could give us some more info about yourself? How long have you been playing? What sort of level do you ply at? That sort of thing, maybe even some footage of you playing.
What is your current set up?
This will give the forum a better idea of what to recommend.
Regarding the Viscaria and Timo Boll ALC there are quite a few reviews of these blades on the equipment section of the forum, so take a look at these.
The Butterfly catalogue lists both blades as having the same properties along with the Zhang Jike ALC,
So the differences are likely to be pretty subtle.
So one way to look at things is your paying extra for the name and a different handle in the case of the TB ALC & ZJ ALC !!!
Just for that reason, the Viscaria is better value for your bucks!!
For even better value, there are plenty of Viscaria clones out there as well !!