Yet another quickest 5 man RAF question

[Poyzon]

SFK is great for boosting. Take them there at 10 and just leave them at the beginning next to the portal. You can run the entire instance and they will gain XP the entire time without having to move.

The first time through, I go all the way to the end (to get the achievement). After that, I only run to the wolf (Fenrus?) since there's only about 10-15 mobs left in the instance and 1 door that you have to wait for. Time = XP, so waiting for that last door and a handful of mobs is not worth it in my opinion.

When they ding 20, move on to SM.

[sorry]

Hiya guys.
Starting multi-boxing in two weeks and have a couple of questions concerning RAF and lvling. I've read quite a bit on the forum, but couldn't find definite answers to my questions below.

BACKGROUND
I've got two accounts from before (never dual-boxed though) and I'm gonna add three more for a total of five. The plan is to end up with 5 shammies (one on each account) for PvP fun. I also plan on getting two paladins (on seperate accounts) so I'm able to run instances.

RAF:
My plan is to use my two accounts, let's call them A and B, to invite my new accounts (C, D and E).
A -> C and D.
B -> E.
This way all chars will be linked and be able to get the 300% bonus if I'm not mistaken. Anyone wanna confirm that I'm correct?
I then plan to get chars from accounts C, D and E to 'give levels' to chars on A and B.

ORIGINAL PLAN:
My original plan was to make 5 shammies, one on each account, and level them as a team (ele-shammies). The just before they got to 60 'give levels' so I'd end up with 5 shammies ~ 60, 1 pala ~ 60 and 1 pala ~ 30.
After that basically just lvl the shammie group to 80 and quest the low lvl pala up to high lvl pala, then lvl them together to 80.

HOWEVER:
I'm not really sure this is the fastest way to lvl the toons. I read somwhere that instance boosting is faster (I'd like some thoughts on this as well). If so I can use high lvls (got them on both accounts A and B) to drag my toons through instances up to 60 or whatever.
I could use one account (A) to boost 4 shammies 1 - 60 in instances (B, C, D and E).
Then use account B to boost last shammie, 2 palas and one more toon in the same manner (B, C, D and E).

I'd really like som input as to what the fastest method of lvling these gimps are!
I'm not worried about missing out on content since that starts @ 80 for me. All I want to do is lvl them as fast as possible since I don't have too much time to play. As such I'd like to spend as little as possible lvling


Thanks!
/Sorry