I ether get kiln dried hickory or pecan already split or rent a log splitter for $100 per weekend when cleaning up oak around the farm. Splitting mauls and axes work fine to get wood to size for the RF offset, but I'll also use a power mitre saw to cut splits down smaller for the vertical woodburner, Weber or mini-wsm. This works great on smaller splits:
http://www.estwing.com/ao_fireside_f...tting_tool.php
PS: I also "use" my 19 year old 240lb son for wood splitting chores with great results!