Is the Kab Speedstrobe necessary with the VPI SDS?

Strobe??...Was there supposed to be one in the SDS box?..Mine just contained the strobe disc and the SDS.Has to buy one later...

Ok, now you guys have me wondering. I just ordered my SDS from my dealer over the holidays and he made no mention of needing a seperate strobe or disc saying "it comes with all you need".

Is one included with the SDS thats "ok" to use? Does the KAB just make things more exact and easier to set up?

Just curious, How much are you off without using SDS?

I use a stopwatch. Probably not as accurate but close enough for me.

the strobe disc that comes with the SDS works great, you just have to supply your own flourescent light.