Indeed, most of the time this is the best setup to use. However I have noticed that having chrome running with a twitch stream on the side for example can still impact the performances.
Considering how congested and inefficient their hitboxes are, i don't take it as a definitive example. Also, that's a fighting game - most of the time would go into balancing and debugging for competitive play.
What have you searched so far? For example this points to a lot of resources and methods. Have you read these? https://www.google.com/search?q=ui effects unity
Sa7an : not really anymore no :P Must faster with today's tools! As for the floaters I did not clean them on that example, but it is really fast to do. A matter of minutes most of the time.
in film for example they paint double res most of the time, so 8k matte for a 4k film, or 4k matte for a 2k film. its not always like that, but most of the time
Yeah, i just installed it to a different location and it works. Have you installed the example projects while installing unity 5? I unchecked them during the installation.
Fbx converts all bones to a straight hierarchy with forward kinematics. So anything fancy will be stripped out. Best bet (for ANY game) is to look for an example hierarchy to start with.
Agree with texture, looks like a lot of wasted space. Pattern on your cable for example could be easily tiled which would reduce your texture space by a ton.