I've actually come to the realization that a separate option could also be available for the user verses others. This would help summoners better distinguish their summons from other players' summons.
For example: If I were summoner, I could choose the option to enlarge my summon while either forcing other summoner's summons (only on my screen) to be either compact or even hidden from my view.
In doing so, my Egi suddenly becomes very distinguishable from other player's Egi. This would definitely improve my overall experience with summoner in congested areas, such as Odin and Behemoth FATEs. This would also reduce some of the clipping/culling issues caused by the server's inability to display every character/npc on screen per cubed yalm.
I may tack this information onto my original post at the start of the thread.
This is slowly turning into a "Quality-of-Life" thread by the day =).