Hi USGP:
No need to worry about the fuel pump as I performed its first two tanks to starve and then road an additional 6 + K miles just riding it. Few WR's will probably see close to 7K miles and those with the CA model now have a good idea how much their OEM tank holds and even what kind of range is available when the WR is ridden to its limits.
After installing the IMS for the (2) IB's and the X-Country ride, I was not running to fuel starve as the initial tank volume and FE limits testing in inner city and open country conditions were complete. That said, I did have an emergency .3 gallon MSR bottle attached to the bike for the entire trip just in case
That IMS tank was truly a godsend allowing another 80 + miles of range and pushing out fillups to just over once per day at average of every 250-miles.
I hope you experience the same kinds of range in your daily rides wherever they may lead you.
Wayne