i'm also pitching a slurry of US-05 into a giant RIS this weekend if everything goes as planned. i am planning on fermenting a bit warmer however, to avoid the aforementioned ester.
I have noticed that my 'smaller' beers - APA and IPA tend to have a little bit of the ester - i ferment at 64 and then ramp up to 68 to finish off. But my bigger beers, notably IIPA and Double Stout, i don't notice it, likely because there is so much other extreme aromas that its more hidden.
i'm thinking of transitioning to 001 all the time (i alternate back and forth) - am experimenting with the idea of doing a two step starter, with the second step (not being stirred) and using the actual wort from brewday, pitching at high krausen.