EFA shows you have the speed mods installed.

The 2.5 refers to your draw length.

The Allegiance has a max draw length of 30 inches. So you must subtract the 2.5 from 30. It shows your mods are for a 27.5 inch draw length on the Allegiance.

The "T" means that mod goes on the top cam and the "B" meansthat modgoes on the bottom cam.

Hope this helps.