Bulgarian Aces

[Flak Magnet]

As I compile my bios on aces of World War II I've come across I guess what would be considered an "editorial" decision regarding on who would qualify as an ace. I initially was using the figure of five confirmed air to air kills as the requirement as entry into this league of honor.
Now comes the Bulgarians. Initially I thought this was a no brainer. I came across Stoyan Iliev Stoyanov. The initial score I read was 14 from one source, so I started preparing the bio. Then I discovered that the Royal Bulgarian Air Force had a point system. If I remember what I read correctly it was three points for a confirmed kill, 2 points for a probable, and one point for a damaged aircraft.
In checking his individual claims, I found that Stoyanov had only four confirmed kills and one shared. Leaving him a bit short of the five required for entry.
So I thought I would check in with the learned experts on this forum. Just trying to get an opinion if you would consider the Bulgarian pilots as aces, or are they pilots falling into the honorable mention category?

Thanks,

Flak Magnet