The suggestion was that TB20s need a lot of runway - a suggestion that you appeared to contest.
There are four seat SELS with significantly better take-off performance than a TB20 without 500HP engines.
Citing St Mary's in the context of Short Fields (as you did), is not really testing the original suggestion.
TB20s require more runway than most equivalent 4 place singles, and I write that as a fan.
2D