If there is a line that can be done free that should have precedence even if that means the aid is somewhat suboptimal.
doesn't that change the character of the original line?
Deference goes to the FA author and their intent in a case like this, rather than a blanket preference for free.
my previous post didn't make that clear.
So it should be...
1. FA author preference
2. If there is no care either direction, then consensus.
3. Consensus should be based on existing principles.
4. Existing principles of preserving the original route in as close an approximation as possible has the highest priority.
5. Since the character of the "free" tree climbing has change, much like a rock section breaking off, then it falls to the next best principle one can appeal to.
6. That then is free climbing, with the highest protection bolt being no higher than the highest possible slung spot on where the tree would have been. i.e. at that same level.
7. Failing that, but I'm sure if the bottom first moves will go, then the upper section of where the tree would have been is possible since the tree was 'free'... yeah, so failing that because the bottom won't go, then climbing consistent a variant with the difficulty of the existing line seems reasonable. Hence interest in coming in from the side. Which wouldn't be dead horizontal necessarily, but protection bolts above a 'tree' high point might make it lean hard to the left depending on the free climbing options.