Thanks for your inquiry. I'll try explain what's up with my gear thoughts.
I have been using a Golite ShangriLa 3 up to now, and will keep it as my wife is coming on a few trips later this summer, and it will be perfect for us both.
I bought the SoloMid in Cuben to try achieve a really low base weight. It is a great shelter, and I've only had it up one night in fine weather, so I can't say too much until I hit a storm or something. SUL involves compromise, and the interior space is half of the SL3, but so is the weight. I found it big enough to do the camp routine and sleep, and had no condensation issues, but over a longer trek, we'll have to see. As a smaller shelter, I noticed it was warmer than the SL3. I really like the SoloMid, and the build quality is first rate, and pitching it is really easy.
I usually use a SMD Serenity bug bivy, but this time used my new MLD Superlight bivy, which was really comfortable. I only use a Rab Top Bag, so the bivy acts like a ground sheet and draught protector, and it worked really well. The fabric was very breathable, and the event foot end is a great idea. I had a TiGoat Ptarmigan which usually left the foot end of my Top Bag damp in the morning. I'm a strange sleeper, high metabolism, so I sleep warm, and didn't have any condensation issues with the bivy. I was able to close it up and tie it to the shelter to give me some breathing room, and it worked great. The mossies were enormous, but didn't bother me in the bivy.
The GG Murmur is fantastic- really comfortable, and holds everything with ease. I use my cut down Ridge Rest as support. I used to have a ULA Circuit, which was overkill for my gear, and I have a ULA Relay, which I'll try on another hike, but I really like the Murmur.
I was sleeping on a combination of the Thermarest Ridge Rest and a GG Thinlight pad under the bivy, which was warm and comfortable. It was the first time I had used the Thinlight- on previous trips, I alwasy got a little cold around my calves and trunk, using the Thinlight prevented this. I have a Warmilte DAM which I will try out soon. I carried a silk inner, which I didn't use, so I won't be taking that again. I usually sleep in my Icebreaker t-shirt 150 and my long sleeved Icebreaker 150, and my hiking shorts and warm socks and my LIM jacket from Hagloffs. In the middle of the night I had to take off the jacket. If I get really cold, I can always put on my rain gear, and use the Murmer inside the Top Bag as a liner. I've done this before and it works- it's a long pack with the extension collar.
I took the Golite umbrella for the midday sun, but don't think I'll bother again. I used to have an Alpkit dry bag, but I've replaced that with a lighter garbage bag, so if it looks rainy, I'll just extend that inside the bag to keep everything dry.
I used to carry a windshirt, but found the ID rainjacket to do the same job, and be more breathable for summit and ridgeline walking.
Other than that, I think I'm dialling in my system just fine, and with a few more tweaks and tests, I'll be there.
I hope this helps.