Lots of folks fish Splithand for crappies ... but there's a fair share of walleyes, pike and perch in there, too. There's a resort on Splithand that maintains plowed roads, although this year we don't have enough snow to warrant plowing. Most folks fish crappies on the same side of the lake as the resort ... you'll know the spot by all the houses and activity in that area. Splithand has some special regs for crappies (smaller limit) and walleyes (slot). The fish you would catch there would likely be quality.
Regarding trout ... they can be found anywhere in the water column from the bottom to right below the ice. Most folks start at the bottom and watch their depth finder. Jig at the bottom for a while, then slowly work your way up the water column to just below the ice. If you see something appear on your depthfinder, go for it.
hope this helps ... and good luck.