i think bracketing is mostly alright, but i understand. i had one that sold above the list price with higher comps. i called the realtor, and asked why such a difference. the owners were moving, they were happy with the price that they wanted to list it at, bought the home long ago. the realtor thought they were being low, but why fight them. well, in this market we have multi bids. i wrote why it was a low listing. also, on page 1, under listings, was it noted that the property was listed below competitive properties? i've had sales where i couldn't find a lower sale price, but i had a gap in the prices which i showed and noted. never a comment back. also, it depends on the lender's tolerance level.
mp227 i have no problem with you saying 'no comps'. the underwriter, lender, didn't see what you saw. it is possible a perception of picking only high sale comps. the only answer being 'no comps' would make me look more at your area, just because it is not a common thing. when i did review, i wasn't ever concerned about bracketing. bracketing is a more recent thingy being inflicted.
it is funny that your sales are higher, and a higher appraised value. if the comps were close & similar wouldn't that be enough to consider original sp as being safe. guess not.