Originally Posted by
bob12403
My wife and I both have Explorer cards, both received the offer. I spend significantly more than she does on the card, so of course my thresholds are higher than hers.
Given that the deadline for registration is Dec 15, and that's retroactive to all spend starting October 1, it seems like the best course of action is to wait for registration as close as possible to Dec 15, see what you've spent to that point, and then make a best guess on End of Year spending and register accordingly.
Why wait to register? There's no cost to do so. Maybe it's worthwhile to review your activities mid period and see if it's worth it to continue to spend on the card, but no bad reason why not to register now.