I 2nd the vote on staying with the same grain weight for shooting uniformity. I note that your from Georgia, fine state, brother lives in Forsythe. Good times were had on Cumberland Island before the "Hired Professionals" cleared out all of the hogs. Those Partitions should do a fine job for both.
The things I've learned about hogs are; 1. the boiler room is from the front leg forward, in the bottom 1/3 of the body 2. the boiler room is very small 3. the spine runs through the shoulder area much lower than many think 4. head shots offer virtually as much target as the boiler room , if I can't get a head shot, if possible, I'll wait until I can.