Was the acrid flavor there before you carbonated it?? If not, then it's over carbonated and you're tasting carbonic acid in the brew... Dial back the carbonation level, let it rest a week or two, and try it again...
I wouldn't have pulled the brew off the yeast after just one week. Unless you tasted the brew before kegging it, and it was good, you could have picked up contamination when you racked.
I know Revvy has stated about having a brew on the yeast for ~6 months without any bad effects. I've done 6 weeks so far, without any issue.
I love using the ball valve in my kettle to get the wort into primary... No more holding the racking cane, and such. Makes things so much easier. I did the auto-siphon deal the few brews before the last two, where I had the valve in the kettle at last... Can't imagine not going this route ever again.
It would be helpful to know what the hops were, at what points... You could just be tasting the flavor and aroma hops... Plus, that looks more like an IPA than just a pale ale to me...