I am just about to start a build that looks like it will be based upon this thread.
Your process and troubleshooting have been very informative.
I appreciate the iterations that this thread has gone through. Did you ever post a link to the revised 2352 version with the safe start interlock included?
Also if there were any changes you would make what would they be?
Thanks and enjoy your beer!
It was not posted but here it is:
It's revised to show all SYL-2352 PIDs.
As always - Click on the image to see (and save) a full scale diagram that is printable on Tabloid paper (11" x 17")

P-J