The comment that made me most hesitant to go forward with the SB5 was how many otherwise-gifted kiddos the test missed - but obviously, that has not been EVERYONE'S experience. If you like your tester, and your tester likes the WISC V for your DS, I would probably go with that. Also, that implies that your tester is likely comfortable with the test and its administration.

Once we found someone we respected and trusted for testing, their opinions became pretty important.

I will be curious to hear whether there is significant confusion about what is "gifted-level scoring" on the WISC V once we start hearing about results. From stumbling across discussions about the WISC IV, it seems like when the WISC IV was released that discussions went on for quite some time about its differences from earlier tests, why the GAI should be considered for gifted kiddos, etc. It does seem like it takes some time (possibly quite some time) for everyone to understand a new instrument.