I think your mostly on, but a couple of points.

JV's. This being JV Notify Pro I'll say something that not everyone will love, but JV's are not important per say. It's important you have access to as many interested people as possible. Having JV's is a great way, but not the only way, to get them. The biggest launch I ever managed ($2,900,000) had no JV partners. Also people make the mistake of thinking that they need a lot of JV's, and this is not always the case either. Much better to have quality because you will find that 95% of your sales come from about 5% of your affiliates. In 2009 I managed one of the largest Forex Robot launches of the year, I believe we had 140 something affiliates, and 70% of our sales came from 3 of them. This doesn't mean the other affiliates are not important, they help to carry the message as well, and contribute to the inbox flood and "everyone is in on this" feeling that is helpful to a launch...but don't think you need a lot of affiliates to have a great launch...or even any at all.

That said if you do have affiliates your running two launches, never forget that. The affiliates have a lot going on, they want to work as little as possible for as much $$ as possible and you need to do everything you can to convince them that your product is the easiest and best way for them to do that this week...and that it'll pay off in more than commissions this week. Most top affiliates want a relationship, not just commissions.

Product. Quality of the product is not really important at all in how important your launch will be. Don't believe me look at the stuff coming out recently. 90% of the people who buy your products will never use it, they are buying for the little dopamine boost that buying gives them. If your first hour or so of content is good, your refunds will be the same regardless of if the rest is the best thing ever put out or if it's shit. All that said I think you should take pride in your product and put out something that does what you promise it will do, but don't be so niave as to think the best product wins, thats simply not the case.

Bonus to first buyers and any other form of scarcity is huge. If you dont have it your leaving tons of money on the table. Same with OTO's.

Salesletter is big. Jeff Walkers concept of the sideways sales letter during your launch is very powerful, but no matter how good your launch, no matter how many hot bottons you hit, a huge number of people are still going to read that letter. Your letter is as important as your launch sequence. You will get a ton of sales as soon as you go live, but after the first few hours people are reading that sales letter, and thats probably 50 to 60% of your sales..so it's important.