IMO, the "Satterlee method" is garbage, and it's growing popularity has been pretty detrimental to reloaders, mostly newer reloaders that don't understand any better (no offense meant to anyone, I was one of them).
Also, if you don't want to read all of this, at least read the bold part at the bottom. I get it, it's convenient. 10 shots and you are supposedly done. When I first started reloading, I went to the "Satterlee method" as it sounded easy and convenient, and a lot of shooters talked about it and praised it. I did it for about ~2 years, my first 2 years or so of reloading. I used a Forster Co-Ax press, a combo of Redding and Whidden dies, and an autotrickler setup, which I was meticulous about. I also have an AMP annealer, and a Giraud trimmer. So all top notch equipment.
During the last year of performing this method, I would load up two identical ladders, out of curiosity, and to see how consistent my results were. The majority of my tests were done with 6.5 Creedmoor, but I did some with .300NM and possibly 6BRA as well. What I noticed, was that I never had two side by side ladders that consistently replicated a so-called "node". Not one. This was over numerous tests, and I realized that the sample size of one shot per charge weight is statistically irrelevant, which is why it was producing inconsistent results. My college statistics teacher would've slapped me if he knew how much time I was wasting on this reloading method.
Since changing my process, my SD's and ES's have gone down, and none of my current loads would've been identified by the "Satterlee method", unless by pure coincidence and chance. On my last outing, 10 shots over the chrono resulting in an SD of 3, and 36 shots resulting in an SD of 4.8.
10 shots is statistically irrelevant. The only thing that ladder is good for is to tell you approximate velocity per charge weight, and to help you find where pressure signs start at. It takes a bit more work to find a nice SD/ES pocket, in which you are going to want at least 5 rounds of each charge weight.
For me, I use a ladder for finding velocities and where pressure starts. With previous experience, I know what the velocities certain projectiles seem to like out of certain barrel lengths. For 6.5 Creedmoor with a 24" barrel for example, shooting 140's, I've found 2830 fps to be a good sweet spot. I'll then look at the ladder I shot, and load up 5 rounds of incremental 0.2 grain charge weights on and on either side of 2830 fps, to see what results in the best ES/SD for my specific primer/powder/projectile/brass is. Precision is dialed in with bullet seating depth tests, I use Berger Hybrids for every cartridge which makes it easy, I've found they generally like to jump 10 or 20 thou.
Reloading isn't that difficult, especially if you start with good quality components and reloading equipment. Lapua brass and Berger bullets make reloading easy, I use those components for every cartridge I shoot and reload for.
Listen to the Every Day Sniper podcast where Frank has the Applied Ballistic guys on, they do two episodes on reloading, and they are worth every second. Next, listen to @BLKWLFK9's Just F'in Send It podcast Episode 25 with Erik Cortina, and check out Erik's resources (Youtube, Patreon). There's too many myths and BS surrounding reloading. Some people try to make some things too simple (ALA "Satterlee Method"), and others try to make it out to be a process like trying to summon a demon spirit on the 4th blood moon of the year of the dog. Reloading is pretty easy with the right components and equipment, but you have to be able to separate the wheat from the chaff. The two resources in bold do exactly that.
