Hi,
I think you can not use specific LSP for an instance when using LDP and RSVP. This policy works if you have 2 equal cost LSP paths.
The below old thread in the forum has great details.
Selecting an LSP for the VPLS Routing Instance
[KUDOS PLEASE! If you think I earned it!
If this solution worked for you please flag my post as an "Accepted Solution" so others can benefit..]