The sb5 can have a "gifted composite" score calculated, which is similar to the gai in that it removes WMI.

For what it's worth my kids both score higher on the sb5, most notably in the visual spatial sections. Their verbal scores have only margin of error differences between the two tests.

Also of note the WM tests in the sb5 are different and for some people thy are easier. My eldest has a very poor working memory but does better on the sb5 style WM tests than the wisc.