Keep it simple.

[MorganW]

What other routes than the Parachute would you recommend avoiding for low environmental impact?

I guess at best it's "lower".

I know the LDNP have had the following parts of the Round under observation:

1. The line down to Hare Crag from the fence crossing below Skiddaw summit.
2. The drop into and climb out of Dunmail Raise.
3. The contour under Black Crags in the vicinity of Pillar.
4. The drop into Honister from Grey Knotts avoiding the fence line path.

You can argue the toss that people other than BG parties use these routes, but I don't think you can dispute the fact that the reason these "paths" exist is to a huge extent because of the BG.