Haha yeah I agree! When I do split a pellet it is with my fingernail, balancing the pellet on my thumb and using my pointer fingernail to split the pellet but honestly, it's easier to grind them haha and you get varying sizes too so maybe once the fish is grown up more, you won't need the tiny pellets so there will still be some bigger ones left over. Though it won't hurt at all to use smaller pellets anyway, just feed more of them.
Yeah, the thing about letting the nutrients out hasn't been talked about much lately but was a big thing when I joined here a year and a half ago. Honestly, nothing helps if you soak the pellet anyway, if the pellet is too large for the fish, it will still be too large for the fish when it's soaked. It may be a little softer but he's still most likely going to spit it out still and it becomes even more messy. Best to just grind/cut the pellets or even just buy NLS Small Fish formula that are .5 mm pellets!
Oh and a note on feeding, many of our fish keepers here no longer count pellets much but rather watch the fish. We feed until the stomachs expand a bit and become nice and round, this is a sign of a good healthy fish. If he looks skinny then he's not getting enough nutrients and so feed more. Generally for NLS pellets I can feed anywhere from 6-15 pellets per fish at one feeding a day and that lasts them the 24 hours until they get their next meal. I do fast once or twice a week to let their digestive systems "reset" and flush everything out.
Don't be afraid to feed him more, as long as he's not bloating up like a beach ball, it's perfectly safe and normal. Most fish will get bored with feeding after a number of pellets and you can see the change in behavior, he'll start to goof off between pellets (this means you feed 1-2 pellets at a time to gauge where it is he starts to goof off or slow down in eating) and that's when you stop feeding. Granted, don't let any pellets rot in the water either, that will just make a mess too.