A disguised call out for VEF or V event?what next?a call out for VLOF?
My airline uses this call out also,i dont agree with it but i go along.
Could be a problem if you reject at your company call of V1,ie your engine failed VEF at the real v1-10kts and you reject at the real v1-5.
You will therefore be below your VMCG...nose wheel stearing always a bonus in this scenario...
If you decide to continue at v1-5 (your airline v1) rather than stopping,this extra distance will increase your VR point therefore decrease your obstacle clearance...already low as 15ft by regulations..
Short runway was it?