Thank you very much for this link. I haven't finished reading it yet but I am enjoying it very much so far. This is a must read for anyone planning on crossing sunfish.
Thanks again!
Edit: I got a chance to finish it and looked through a couple of other articles that had information on sunfish hybrids.
I've found more information on sunfish x LMB hybrids than I have on PS x RES hybrids. There is virtually no information on PS x RES crosses even though (as I understand it) they are very close genetically.
Hopefully phase II of this little plan; to make a cold tolerant snail eating machine won't be a complete failure.