The bullet you are referring to is the "Hi-Shok" bullet. Some folks claim that it actually expands more reliably than the Hydrashok because of the lack of the lead post, while others say it's garbage.
I wouldn't know either way, since Federal bullets are just too darn expensive.
The Federal EFMJ has done quite well. I don't know of a single place that sells the bullet used in the EMFJ cartridge, though.
As for defensive bullets that give you reliable feeding, I'd suggest taking a long hard look at Remington's Classic JHP, not their Golden Saber. The classic JHP has a very conservative profile that closely resembles ball ammo.