Been riding for 4 years, decided to use the stancefinder whilst wife was having a lesson at Milton keynes, They put you on the board and by judging your balance, after a few mins it 'suggests' your perfect stance, mine was almost exactly the same as i'd set my bindings to anyway!
It cost £10.00 to discover that i already knew my perfect stance, still not sure if thats ten quid well spent or not.
So Aaron is right in my opinion, "what feels right is right... Right! Right! Right! Right!
If its the Sonia I know you could always take it to Oggi at Lifestyle, you will however walk out the shop with an BA (Honours) in board set up and be a guru on the principles of swing tip inertia
Thanks for the replies everyone! Sounds likes its probably worth trusting your own judgement!!! Oggi originally set my board up, maybe you could check out my stance FOREST NOOKY!!!! Don't tell TIGER PANTS it can be our secret!!!