Don't boil (all) the extract (LME or DME) for an hour. Especially if you boil a smaller volume with top up in the fermenter.
If you do full volume boils, boiling half the extract is plenty, you could boil even less. Then add the remainder at 5' or FO. It only needs to be pasteurized (10-15' at 170-160F), it's been boiled already (and then some when condensing) at the maltsters.
There are not many malsters that make extract. Briess may well be the only one in the U.S. Muntons (U.K.) is another one, never used their extracts, though.
Before I went all grain I brewed very decent IPAs from extract, both fresh poured LME from Annapolis Homebrew, dispensed from 30 gallon barrels, as well as from all DME (Briess).
Maryland Homebrew has been pouring from LME barrels the last few years too. They go through a lot, so it must be fairly fresh. Just check the date.
I'm not sure Annapolis Homebrew (in Severna Park) still pours from LME barrels, there was a change of ownership/operation a few years ago, haven't been back there since. I don't know about other LHBS's and what they sell.
Online orders of LME, I'm not sure what the quality is.
Or just go all DME.
Or mash 10-12 pounds of 2-row, with some light Caramel malt (1 lb C10 or C20), and substitute some Wheat (1-2 lbs) for 2-row if you want.
Mashing and lautering takes a good extra hour though...