Several days in a row now, I have (I think) been able to successfully book summit tickets (two months out--to the day) for the Eiffel Tower. I do this in the AM MST (USA), about 10-12 hours after release at 8:30 AM Paris time. Based on what I've read here, this shouldn't be easy--or even regularly doable. I am doing these "practice runs" to be prepared for the time of actual purchase (I don't want tickets until March 2020). Also, I have not yet established myself as a ET "customer" and I haven't proceeded beyond getting the tickets into my shopping cart, whereupon the site asks if I want an e-mail confirmation or if I want the tickets to be mailed. Bottom line: this has been extremely easy, which is NOT what I've understood it should be. So...
Am I fooling myself here? Is it not enough to get the tickets into my cart? Should I sign up as an ET customer? Should I carry my dry run almost all the way to purchase, including entering credit card info? In other words, does carrying the process further sometimes result in failure even though it appeared to be successful at first?
Thanks in advance for any and all responses. Getting to the summit may be a bit touristy/corny, but it is mandatory for us.