@rosborne979,
The effects of evolution would seem to need to be fully wrt the breeding cycles and gestation periods of the particular species. Greater complexity probably does mean more gene sites for greater somatic "cryptic variation". However, this may be modified by the breeding cycles. (EG, a whale is more complex than an annelid but since its gestation and breeding cycle is over 2 years , it may take longer).
Im not sure of anything I say there is valid cause Im at a ragged edge of any knowledge of this. I wish we had someone like Sean CArroll on this line. Im sure we could get the "popes nose" on that point.