Undecided is correct. There is a penalty for not using the wings. I haven't looked for it yet but will today.
Ahh Duh!!! Got it it
"Any other deviations from standard class configurations, including the addition of wings,
can be assessed a penalty of at least 0.995........
So take the 68.10 X 0.995 for a rating of 67.76 at least this is what I am able to get off the Portsmouth Website.