Hows does "wake host" function on S2c with firmware 4059?

I am trying to delay taking a sample after the xbee wakes, however when I set WH to anything but zero sampling does not occur?

Answered my own question on testing:

With WH set it appears the first sample on wake is not sent. First sample sent “on wake” not when WH timer expires. The next sample will be determined by IR. IR must be set such that sample #2 occurs after WH timer expires and before ST timer expires.