I suggest to give grps an increasing per player instance bonus cap before reduction.
Where you set that is up to you, but imo it should be somewhere between 350% and 500% in a 8 player grp before it gets reduced. That's kinda the minimum bonus you need to have a happy ungrindy xpfeeling, especially with an average melee/hybrid lvlgrp.
The idea is it doesn`t matter who brings the inst bonus, it gets added and divided by players.
Example: set inst bonus at 75% per player in grp before reduction ==== grp of 3 = 225% inst bonus before reduction, grp of 5 = 375% inst bonus before reduction, grp of 8 = 600% inst bonus before reduction.
(i like this one as it matches the 75% max powerpool bonus for DS/HoH)
Example2: set inst bonus at 50% per player === grp of 3 = 150%, grp of 8 = 400%
Now it should not matter if one player brings 300% or 3 players bring each 100%. it should always get added up and divided by grpmembers before reduction.
Where you set that is up to you, but imo it should be somewhere between 350% and 500% in a 8 player grp before it gets reduced. That's kinda the minimum bonus you need to have a happy ungrindy xpfeeling, especially with an average melee/hybrid lvlgrp.
The idea is it doesn`t matter who brings the inst bonus, it gets added and divided by players.
Example: set inst bonus at 75% per player in grp before reduction ==== grp of 3 = 225% inst bonus before reduction, grp of 5 = 375% inst bonus before reduction, grp of 8 = 600% inst bonus before reduction.
(i like this one as it matches the 75% max powerpool bonus for DS/HoH)
Example2: set inst bonus at 50% per player === grp of 3 = 150%, grp of 8 = 400%
Now it should not matter if one player brings 300% or 3 players bring each 100%. it should always get added up and divided by grpmembers before reduction.