any plans to create a 2.6 SVP edition?
I don't want to do this until 2.6 release. It's "still in alfa stage" (c), right?
From my point of view 2.6 is better in just one case: (some of) its built-in resizing functions are significantly faster. May be I've missed someting?
are there any potential disadvantages of using SVP build of Avisynth over the usual MT one?
Well, it should lead to cache misses (which is equal to "reduced performance") in "non-linear" scripts. But it's great for linear processing like "classic" MSuper/MAnalyse/MFlowFps chain.