Overgraded 1859-s G$?

ranshdow

So, the following coin is not only PCGS graded as AU58, it's CAC approved. Having looked at a number of 1859-S gold dollars in AU auctioned for sale recently, this date in general seems overgraded to me. According to the QDB gold dollar book & others (Coinfacts, DW), this is related to the fact that so very few were saved from circulation at the time of issue and as a consequence these things are condition rarities in uncirculated grades. My coin, below (hosting and photo courtesy of BluCC) either has a weak strike or is more like an AU55, or at least that's my opinion. I'd like your opinion- is this a true slider or something a little more worn?

Edited: here's the link directly.