Angel Stadium was 25th of 30 MLB parks in 2011, in terms of HRs. And beyond that, I have to imagine it's tougher on RHB HRs than LHB HRs, just given its outfield fence dimensions. It was 23d for HRs in 2010, then randomly 2d in 2009, and 17th in 2008. Hard to be sure, but given its dimensions & three of the past four seasons, it sure looks like a pretty HR-unfriendly park. On top of that, the AL West includes OAK, SEA, & TEX, and the first two teams also play in HR-unfriendly parks. I think the ballparks in which he'll be playing most will, overall, hurt his chances to run down #763. With all that said, though, Busch Stadium's HR PF ranks for the past four seasons are (oldest to most recent), 19th, 28th, 26th, & 27th. This is, without a doubt, one of the best power hitters & hitters of all-time. So the 'general rules' need to be either thrown out, or at least considered with a bit more scrutiny. I think he has a tangible shot at catching Hank & Barry, but if I were betting, I'd bet against it.