I have an Xbox V1.0 modded with a muppet-x with Evox M8 on one bank and X2 4981 on the other. It also has a full SlaYers 2.7 install on it.
My problem is, my box is running very slow. When I load the MS dash (disabled chip) it take a long time to initially load up, and once it does, it glitches badly whenever I change menu directories (e.g. going from main to memory, settings to network etc.). And also, when I play a game (e.g. halo 2) from the disc drive or the hdd (doesn't matter which), it lags like crazy! MS dash or not! I take things a long time to load, and it will still be loading graphics while it's playing the scene!