Raf and char boost

[Kaffetv]

The answer may be yes, although I'm not sure exactly what you're asking.

Yes you can use a character boost from purchasing the expansion on your main account.
Yes you can use that character to boost RAF groups
However, no links to that main account will not count for RAF as the booster won't be within 4 levels of the boostees.
Yes links between other RAF accounts in the group will still grant triple experience.

Maybe if I boost 3 out of 5 chars leaving 2 chars in same level then i could use one of the high levels to boost them throught instances?

[Sservis]

How did you structure your RAF team? Which accounts are linked to which other accounts?