You spoke too soon. Enviro 400 worked 11 to liskeard after MTV last week, and one worked an early morning 11 today from liskeard to Plymouth!
Deckers worked a dupe for royal cornwall on the 11A with the dupe skipping Bodmin Parkway.
Yes you are correct deckers can work shorts to Liskeard,but the point I was making was the full route goes to Bodmin Parkway station, and thats another matter.