As a followup to my earlier post, let me add that I did buy the green and orange dilators from the Sole Source set to add to the 4 dilators from Dr. Chet.
At the current time, right now today, I've been using the orange for almost 3 weeks. The green goes in easily past the last dot. The orange stops between the last and next to the last dot but that's slowly increasing. When I started three weeks ago with the orange, it would stop with 3 dots still exposed.
My current dilation schedule is twice a day, for an hour or more (usually more). I use Dr. Chet's #1 for 10 minutes, #2 for 10 minutes, #3 for 10 minutes. I skip #4 entirely and go straight to Mr. Green in the Sole Source set for 10 more minutes. Then I go to Mr. Orange for 20 minutes or more (depending on what I'm watching on my laptop).
I've frequently gone 50 minutes on the orange dilator, after the 40 minutes on the other 4, just watching TV or a movie. That's in my evening session. Morning sessions are almost always just an hour.
I am pleased with my progress and see zero loss of depth from immediately after surgery. The #1 from Dr. Chet's set still goes in over 6.5 inches.