Thank you Allen84
The solution was easy and the results were immediate.
I had read over this forum’s recommended approach for a month with apprehension to do anything that may potentially impact my 2011 FFH with 40K miles.
My FFH had the same initial start hesitation, limited hybrid mode and dropping mpgs as previously described by all the others in this forum.
I purchased the OBDLinkEX as recommended by Forscan.org and followed the directions. The directions were easy to follow, just a few steps. Upon completion, I too heard the reassuring thunk in the trunk.
I drove off in the car for 20 minutes, hybrid mode returned after 2 miles when the car warmed up. Stopped and filled the tank with gas and drove home to 51mpg at 45 degrees F today.
Thank you again Allen84, I set up an account today to encourage everyone like me to trust that this will work and try the solution.