Yet another quickest 5 man RAF question

[Moorea]

Btw, even with A-B-C-D-E and A being a booster - how do you get even 5 level 60 ; assuming A boosts B,C,D,E to 60 :

then you can create a level 30 on D (from E's level 60/2)
which lets you create a level 45 on C (first 15 from the l30 on D and another 30 from level 60)
which lets you create a level 52 on B (22+30)
which lets you create a level 56 on A (26+30) - or if you have a level 4, a level 60

this is nothing to be that excited about ?

In other words the "number of granted levels" may be in theory large, but practically - what do you actually run and can grant ? (ending up with a bunch of level 2 or 4 or... isn't very useful at all)

(with A-B-C and A-D-E you get directly 1 level 60 on A for each 4 from BCDE)