Game Mechanics: Leashed Guards in NToV - Need answers! (again!)

[Detoxx]

As it stands right now, you can break any leash of any dragon in NToV. Was this classic? Were you able to just kite them so far away and drop aggro and have them not come back to their Dragons?

This isn't the way it works with Vindi, nor Tormax. The guards for these two will come back, not aggro, but still come back to their target. Being able to break leashes on guards has destroyed any sort of competition in NToV allowing for instant pulls and kite aways to break leashes and single pulling dragons anywhere you want.

Anyone got any evidence on this subject? Thanks!