No no, I use different lenses as allrounders. ;)
I have both Vario X lenses (12-35 & 35-100 f2.8) and they work superb. I want to use the SB-Tokina combo for small, darker spaces like rooms and so on. Andrew used that combo in one of his tests and his pictures were pretty great IMO.
I tried the lens on a Nikon today and since the focus is not perfect, it's way better than on the SB. Might have to get the lens checked, too, though. Then I tried another Nikon (or Sigma in that case) lens on the SB and I had another weird problem. On 12mm, the background is sharp when focused to 0,3, but when I focus to infinity the whole picture blurs. On 35mm though, I could focus really close and shift it to the background without a problem, even on wide open. The image is sharp and very nice. Do I still need to try to adjust the Speed Booster or will I have to send it in?
It wasn't a vacation, but yeah, it's a great country. Seen much dark stuff, but also a lot of cool things. The button-thing started in Rio, no excessive heat or humidity there at that time.
Adjusted the SB myself and though it's still not perfect on infinity (especially after 3-5 meters), it's WAAY better now. Thanks for your help.