Not sure anyone will have an answer for this one but here goes.
We have a site which we think may have an Over optimisation penalty causing the homepage not to rank for the most competitive terms (internal pages rank well) and Ive checked all technicals regarding the homepage.
So in an attempt to move on with life in google we have moved the site to a different domain (just a different tld). All 301s are in place.
My question is this, should we use the Google Webmaster Tools 'change of address' tool as well , I am just concerned that it could pass on any penalty where the 301s alone may not?