"ent_create does slowdown yourgame(That's why it's marked medium speed, slow when 1st called on a same model), preload_mode doesnt speed up the 1st ent_create"

MANUAL:
"Preloading entities at creation increases the level loading and entity creation time, but prevents a little 'jerk' when an entity becomes visible the first time."

so what are you getting at, it doesnt speed up the first ent_create because its not doing what it should, thats the point of this thread, ent_preload not working correctly