robert76 - 4:10 pm on Feb 16, 2012 (gmt 0)
I have rarely seen adding or removing sitemaps to dramatically impact a website.
On a related topic, never had a sitemap in our WMT. Very old ecomm site that lost over 50% of traffic in Panda 1.0 and has not recovered.
Does this particular scenario change anything? Would adding at this point in time benefit us or hurt us more?