Still beats writing spreadsheets spathi!

I tried some softbodies over the weekend, after a bunch of earlier failures I managed to make a decent start. Began with various primitive shapes but focussed on drawing blobs. I'm trying to draw a smooth outline through 8 points using bezier curves, but some pointy edges remain at the starts and ends. Any tips on how to minimise that?
Press space to toggle the point structure visibility. Currently all points spring to a certain distance of one another, I still want to implement min and max distance constraints and optimise/try various link structures.
http://kirl.nl/locoRocko.swfArrow keys to move
Click & Drag blob around
Click blob to split and eventually remove
Ctrl to add a blob,
D to remove
Space to toggle link structure