FamilyTree DNA are having an upgrade promotion for a week, so we will be taking advantage of this to upgrade S-1 to 67 markers.
Should any other participants be eligible and wish to avail themselves of the offer, follow the link in the email you will be sent by Family Tree DNA (I don't yet know how much of a discount, but the promo I received said an average of 25%, and the normal 37 to 67 upgrade is $99 US).
Note the instructions in the flier:
To order this special offer log into your personal page and click on the special offers link on the left hand navigation bar.
Looking forward to seeing what the additional markers tell us about how close the matched trees are.
Have you checked out the new DNA Projects Portal Supplementary pages?