/6 Timing has me stumped!

All this extra monkey motion is beginning to exceed the effort required to do a timing chain/sprockets install correctly (i.e., degree-in the camshaft instead of lining up dots and hoping they're stamped sorta kinda almost more or less around where they should be).
So whats you're opinion on what the possible issue is and what the remedy could be. I realize its a slant six and not a rocket to the moon. Just looking for some help on how to remedy a problem with an engine already put together.?.? Monkey motion isn't really any help at all. I'm not a certified mechanic, just a hobbyist like most guys just trying to get by.