Donated troops - reintroduction of sharing benefits to maxed out units

I must say that I am loving the game thus far. The evolution truly keeps the game interesting. There was one update that was quite beneficial when our clan was at a lower level, the perk of troop upgrading when donated. This perk was truly useful as a beginning and middle of the road clan. As the clan grows, more members have max level troops and thus many of the players no longer benefit from any troop donation upgrade. My suggestion would continue to allow relevance to the troop upgrade perk for clans with maxed out players. Here goes:
Troop and spell upgrades could go beyond the current max level available through research labs.
ONLY donated troops can reach those higher levels ex: Golem level 6 and 7 would only be attainable if a they are donated to you by a clan member. ex: golem level 5 was donated to a member in a clan level 5 would become golem level 6.
The troop would upgrade with respect to the current rules regarding 1 level up or 2 based on the current clan perk level plan.
Donated troops with upgraded levels would see a small boost in health and damage. (it doesn't have to be huge, we don't want to create heavy unbalances in the game but rather reintroduce and promote the benefit of sharing to players with maxed out troops)
Graphic differences can be as minimal as changing the max level flame colour while keeping the same colour for the unit. Alternatively all units could have a max level + 1 colour (all barbs/arch/wiz etc would be orange) and a max + 2 colour (all barbs/arch/wiz etc would be black) creating a standard look for these units.