That is correct, I do have a TAC 15 and I realize you have a TAC Elite.OkieBowie , I noticed on another thread that you don't have an Elite. The aforementioned might not be true on the Tac 15.
In regards to what you say happens on TAC Elite with string and shuttle, that does not happen with TAC 15. Well for the most part.
The knots that attach the D-Loop to string do slightly raise the string up as D-Loop is pulled up onto shuttle release block. The TAC 15 shuttle block is shaved down from about middle to front to keep string at (or nearly at) same level the string is at un-cocked and at rest.
On TAC 15 when shuttle is drawn back the shuttle does go up a slight incline as it nears back prior to latching, then shuttle drops back down into latch point. The shuttle appears again to be level and inline with string position at rest.
From your description of TAC Elite something with regard to shuttle or mounting position of limbs have changed. I really can't understand why the string would need to be raised to put any downward pressure on the anti-dry fire latch system of block.
The TAC 15 does not need such downward pressure. In fact, it is the knocks of the arrows on the string that push the anti-dry fire latch down to where string is not caught upon release.
Wish I had a TAC Elite to compare against my TAC 15.