In the new version of the litecoin core I'm using (16.3), pchMessageStart is only part of initial testing and doesn't appear in the normal non-testing part of the code.
Defined for Mainnet
here.
Defined for Testnet
here.
I hate the search option in Visual Studio....said it found it in only one file and I confirmed, yes, that particular variable name is mentioned in chainparams.cpp and is not merely "pchMessage" any longer. I've also been getting confused as to who was advocating what. I thought you modified something other than the pchmessage part. I didn't realize you had effectively forked the network. With the Flying Spaghetti Monster willing, so far, I'm close to the beta/release (i guess) of my wallet. I keep noticing small details I'm messing up is all.