Wood grenade? That sounds like it'd get the job done. I'm mainly splitting pine, 15-20'' logs, some cedar, alligator juniper and some pinion. my cheapo maul, with 'aftermarket' handle has been my tool for warming up the house for 3yrs. I'd like to invest in something better some day.
I have used both but as I don't split a lot of logs I have no preference and we need pictures of your tools at work Thanks