For what its worth i haven't found any posts of exceptional mileages between services from people under the LL regime. Certainly not many people run for over 15 months or 15k miles.
Do the dealers use different oils ? - i doubt it. Yes they need to hold different oils for servicing other and older models, but most likely all MkVs and MkVIs get the same in reality.
Personally i'd prefer to change the oil at least annually, so the T&D would be my choice. Thinner oils aren't necessarily a good thing either, there may be a miniscule benefit at low temperatures but theres also a similar chance of increased engine seal leakages.
The current service plan allows servicing for 3 years, which under T&D is 3 annual visits (or every 9.5k miles) and a brake fluid change at year 3. Someone priced up the first LL service schedule at their local dealer and that alone was £255. The service pack seems a good deal if youre planning on keeping the car for the period.
Note soem dealers also offer their own service packs, which include wear n tear items. These are typically £250-350 p.a.
