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:
PS: I also "use" my 19 year old 240lb son for wood splitting chores with great results!
Weber 26.75 OTG w/CI grates & SJ/WSM Mini
Home built 24"x72" reverse flow stick burner trailer with 18"x44" grill w/CI grates and upright SS gas oven/smoker.
Home built 48" fire pit with a 30"x30" Santa Maria style ranch grill.
Home built lump charcoal retort, iGrill & a bunch of other cooking toys.