Run'em high enough to still be comfortable and not compromise use of controls and/or side to side transitions.
Low enough as not to contact the track or compromise lean angle. Or limit bike.
Sounds as if your right about "there."
Adjusting preload, I.E., Ride height will help the occasional toe contact by increasing ground clearance.
If that's done. Raise'em up one & see if it feels right. Given the bike that it is, Your gon'a have some limitations.