Implemented LSPI/LSTDQ, and added some semi-working parameters for them for mountain car. LSTD-Q (the backbone of LSPI) isn't working when I have it update more frequently than it fully refreshes its data samples. This seems wrong, and so I suspect I've got a bug somewhere. I'll be rereading the paper looking for what I might be missing later today and hopefully will push out a fix, or at least an understanding.