Yeah.. I know what you are talking about. That was land of haze on the flip and the original on the other side. I have that too. That was the domestic release on ffrr. The one I have is an import with seperate remixes. The "batacuda dub" being one of them.
I have a remix of that on ffreedom/ fresh fruit records circa 1993 which starts off slow and builds as you say. The one in question is the Batacuda Dub. Hope it helps.