You can look for the previous generation VPI speed control boxes. I have one I am going to list for $195 when I get around to it. It has separate dials for 33 and 45 and a switch to select either. Pro -Ject also has some speed control boxes, I haven't used them.
Speed control VPI HW19jr
I have a strobe on the way, what if the table is off? How would you adjust the speed on these tables short of buying an SDS? Something tells me I am not going to like the answer to this. That is the biggest difference I see so far in comparison to my previous Technics table. The VPI takes awhile to get up to spped and then there are definetly fluctuations that you will never get with a Technics. I also have a new belt coming also so perhaps that will tighten things up. I think that if I can get a stable platter speed from this table that it will outperform the Technics, that is a big if.