I recently built a new 8IGHT-E 3.0 and a new 8IGHT-T 3.0.
I tried all three 25 tooth metal servo horn inserts I have on a Savox servo I have and none of them go over the splines. NONE of the metal inserts I have fit the Savox.
I have a Hanger 9 aluminum Futaba servo horn that fits fine. I also have some of the plastic Losi 25 tooth servo inserts that fit fine, but not the metal ones!
Has anyone else encountered this? I apologize if it has been covered. I googled it and can't seem to find any info on this issue.