I've got two trinity drives, and my base attack is - with 3 velox on. now by some quick math my defence should be an additional 1429 added on to it which is 10362 . which may or may not actually be 10419 if one is added on after the first 8% (like other modules)
but for some reason when people hit me on the BT, its only showing and ~9600... where is my last 7-800 defence at?? thats quite a chunk to be missing, especially from my RL$ item purchase.

The attack/defense shown when someone is attacking you does not include helmsmen and TOs.

It shows 9600+ which people seem to overlook, the trinity cores work just fine.

that could be the reason i guess.. only got ~1900 helmsmen. so that might be it.