Never used brewersfriend.com before, but had a look and it does account for changes to hop utilization if you scale recipes. So, that's cool!
I found that you have to make sure to enter the correct boil size after hitting the scale button, since it adjusts your boil size as well as your ingredients.
Have you ever tried hopville.com? It's another free web-based piece of software with a slightly different interface. I've used it a bit and like it. Something to try.