I have finally decided to retire my old E4200v1 and switch to Netgear's R7000. I still have some dead spots in the house though, and I was wondering if I could use the E4200 as a wireless repeater to boost/repeat the signal in one of the dead spots. Can the E4200 (stock FW) be used as such? What if I switch it to Toastman's Tomato?