From my limited knowledge of the 'Sneca' (about 100hrs on type ) it appears to be a 'Sneca' 1 which if I recall wasn't too flash in the SE performance side of things
Wally, it was indeed a "Sneca" 1 & I remember it well. One of the first things I was told all those years ago was that a "Sneca" 1 couldn't pull the skin off a rice pudding.
DF.