Tom, yeah I use a block of wood for that....I just have this habit of focusing close to the inner limb and ignoring the midlimb to tip area sometimes....after studying this bow for a long time on several occassions, I've decided it ain't as bad as I feared.
Tweak the stiff limb mid to tip and I think I'll call it good. Right now, I'm at 3/16" positive tiller at the fades....Gotta shoot it in and then re-check it.
What I should do is make one of Eric's tiller Gizmo's, might save me some grief in the future...