I've been using my new Filco for a couple weeks now and I couldn't be happier. Typing has never been more enjoyable and it hasn't been much of an issue with games. The one issue I have doesn't even have anything to do with the key switches themselves. I've been using an ergonomic for so long that now I'm finding that the alt, ctrl, and shift keys aren't where I expect them to be. I've only had an issue with this while gaming, however, and it hasn't affected my actual typing.
I haven't tested it, but I do feel like my speed has improved a bit since I got the keyboard, despite my bottoming out on the keys. I've been trying to train myself not to bottom out since I know I'm not taking full advantage of the tactile feel of the switches by doing so, but it has proven to be a difficult habit to break. When I'm thinking about it I can slow down and keep myself from doing it, but after my mind goes elsewhere, I will catch myself smacking away at them again. I guess it will take some time.
Overall, I am very happy with the keyboard and don't think I will ever go back. Thank you for all of the tips and shared experiences.