For all the people fear mongering about "suicide" hubs: have you ever actually ridden one and have it spin off during normal riding conditions?
I ask becaue last night I threaded a track cog onto my freewheel hub and took the bike out, with no brakes, and I actually tried to spin it off and I couldn't. And I just threaded it on with a chainwhip... I can only imagine how secure it would be rotafixed with some loctite or jb weld.
Sure, if you thread an old cog onto a dirty hub and go riding downhill in the rain, it may fail you, but even so, just use your front brake to stop and then walk your bike home.
I honestly think that a decent rider with a "suicide" hub and a front brake stands a better chance (or at least no worse) than a person new to riding on a brakeless track bike.