oooo that is such a good point, i don't have any high refresh monitors on hand. i will have to get something to test with in the future, i never would have thought of that. i'm definitely going to keep that pit in mind, i really thought i had a good grasp on this notion of keeping things in sight and making unpassable areas really clear and i really don't know what happened there. it's fun to do if you have the upgrades so maybe i just didn't think enough about it but i definitely will consider stuff like that more closely in the future. thank you again, some very helpful info!