Thanks Bernd for that perfect example of how people are excluded by default on this subject. I often wonder how you aiki guys remember who is supposed to have it and who doesn't. It must get confusing after a while.
No reason to feel excluded. Either one can show or not. For the rest, everyone is unsure wether what he feels as his aiki could be exactly the same as someone else's . Even Sagawa is said to have remarked this.
So you have a good point here.