I have no experience with that particular rim. But, in my experience, even a subtle lip does a good job of holding a bead. Maybe I have not pushed the experiment as far as it could go, but I actually think that such a lip holds a tire as well as a more modern hook.
jim
__________________
Cross Check Nexus7, IRO Mark V, Trek 620 Nexus7, Karate Monkey half fat, IRO Model 19 fixed, Amp Research B3, Surly 1x1 half fat fixed, and more...
--------------------------
SB forever