This is a reasonable method that I've also employed.
The two issues I've come across:
Towards a game getting over 70% sold the lottery tends to slow out distributing books (if they do at all) and then start sneakily pulling back books to make room for other games, with most of the books getting pulled likely in the "target" zone. Once the FL claims them, who knows if they'll ever make it back out to an AK Kwik or if they just start disposing of them. This is why the book numbers theory might not work best towards the end of the game, but I think would better work around the game's half-life before the Lottery starts the funny business.
The other issue is that sometimes (and somewhat in the newer games in the past few years) jackpots have been stacked closer together than what the averages should be. The $5M prizes for $20 Monopoly is the one I think of when they pushed out 2 $5M winners and the rolls were only about 50K from each other when they should have been larger. One thing I haven't been able to confirm is whether the "Pools" of tickets actually run sequential or if the Vendor can assign whatever pool it's wants:
Example: Say Roll 10005 has a $5M Jackpot Winner in Pool 1
Say Roll 10006 also has a $5M Jackpot Winner but it's been assigned to Pool 3. This roll will sit in the warehouse until later and won't ship out at the same time.
Between these, I've given up chasing the last jackpots after going through the 100X and $10M Spectacular debacles.
Oddly enough though, I think the Lottery pumps games with more winners when the game is 40-60% through. On $5 full of crap, I had 6 losers here and there until I finally got my first $10 win a few weeks ago. Since I've played 3 more tickets and all have won $5 or $10 which after going o-for, I'll take.