I've heard this idea that you should wait to bundle before, but it's a mystery to me. Why wait? Do you truly think you'll scavenge sales by having more product available? I bundled my trilogy literally the day that the third book came out. People started GIFTING the box set (it was just before Christmas), something they wouldn't have done before. If they buy the box set instead of buying the books independently, they save a dollar... but I also get 100% sell-through on that person. Whereas, if they buy piecemeal, I'll get something less...even at 50% sell-through book-to-book (which is pretty good), you're still better off having them buy the bundle.