I know that there is a Chevron limit of 1 for each unit, but can there be made an exception with low cost slingers which do only have an attack of 1 with their slingers (like the Shepherds of Lusotana faction or Celtic slingers), so that such units can be upgraded with 2 chevrons so their missile attack will be similar to an upgraded Hellenic slinger (base attack 2). For I have noticed another thread about the baeleric slingers that they have lesser ammo and other things which make them rather overrated in the game while one would rather field a cheaper slingers as an alternate option.