Pioneer54:
Thank you for intervening.
I feel less tempted by the Amazon piece (again a combination with the Knight movement).

My aim is  to improve Grand Chess with pieces or rules from old classical games. They are for sure steady value, having been tested since many centuries.
The trap to avoid is to overload the game with too many pieces like in some variation of Shogi (Japanese Chess).

A possible starting position may be:
PP  P  P P  P  P   P  P  P
  N  B C Q C  M  B  N
R       A K A                R

A(rtillery) are Chinese Cannons. Note I preserve the Marshall for those having a different appreciation about .
Also worth to note is the possibility to renew with Castle rule, eventually.
Don't forget the promotion of a Pawn to a Japanese Chess Gold.

Well that is a summarize of my suggestions. I will be glad to read your reactions, including from Fencer of course.

If you think that could be of some value, a possible name for the game could be "Asian Grand Chess" ?

Cheers for now, P-G.