Larry Smith wrote on Tue, Dec 9, 2008 08:39 AM UTC:
One reason for increasing the hexagonal field size by 50% is to increase the potential of the diagonal sliders. But XiangQi only has two particular diagonal movers, and they are restricted to one side of the field, and one type to a specific area. Thus increasing the size of the field does not actually gain any significant advantage for these pieces.
It could be argued that the Horse uses a diagonal in its move. But this is simple a step. Increasing the size of the field will actually reduce its effectiveness. So the only reason to do so would be to slow its opening advance across the field.
But looking at your attempt at a hexagonal XiangQi, I can see several un-necessary elements. That is the right and left section which make up the star pattern of the field. This would eliminate the extra Soldiers. Also the right and left cells from the 'Palace' could be eliminated. The game could actually work well without them, but this would destroy your overall theme.