Took the BFSC, now HSC. IMO, not much of a difference if any. Anyone who passed the BFSC test back then, still owns a gun and keep shooting, should have no problem passing the HSC test. The handling test would be a good idea, so someone who heard their friend's comment "1911 is the best gun" don't go and buy a 1911 without fully understand the function of the gun and safety mechanism (I got this funny question: How do I de-cock the 1911 with a round in chamber, that was classic).
Other then that, if you read the book, do the sample test, and still manage to fail the test (Your score <23/30), then you should consider other alternative recreational activities or self protection method instead of owning a handgun. The test is that easy and for the hundreds of test that I have administered since 2003, I havn't got anyone failed it yet.