This is an update on my experiences so far with my new 8'10" Ghost. At this point, I have had a chance to ride it in a good range of conditions, from knee-high mushy to fast overhead waves over shallow reef.
The board handles everything well and is definitely allowing me to surf better and younger (this is important at 74

). The board generates great speed and projection, allowing more lip-hits, and carrying more speed into and out of roundhouses. The sharp rails in the tail are great for speed, and the soft rails up front are forgiving for coming down from floaters.
Previously, someone asked about whether the more forward fin position negatively affects the ability to surf off the tail. For me, there is a dramatic improvement with the new fin position when surfing with your rear foot back on the dark brown portion of the deck pad. While I can surf easy rolling turns from on, or in front of, the bump in the rail line where I first surfed this board in tiny waves, the board really comes alive in better surf when you get your rear foot at least back on the dark brown portion of the pad where the tail narrows down behind the rail bump. The difference is day and night, creating sharper turns and much quicker response.
When I first wrote, I was experimenting with thruster setups with 4.5" fronts and a 3.6" trailer. This worked great in tiny waves, but for anything over knee-high, I am now preferring an upright quad setup which works great on the widish tail. The quad setup requires more flex and power in the turns, and rewards it with more speed and projection coming out of those turns. I am using NVS Peregrine 4.54" fronts and 3.95" NVS J/L rears with some of the tip rake sanded off the rear fins to make them more upright with more release. I have been hand-shaping the tip rake on the JL rears to find what I like, and just ordered a set of NVS Album Fascination rears, which are very upright with less surface area than the JLs.
FWIW, for me, at 74 years old with messed-up balance from multiple concussions, double vision from a surfing injury, and multiple rebuilt parts, 8'10" is the perfect size. In the mixed-up cross-rollers we often surf in, I would struggle if I had gone any smaller. If it gets really windy and messy, I may occasionally retreat to my 9'0" Tabou, but 99% of the time, the 8'10" Ghost is the perfect balance of performance and stability I was looking for. (Thanks Creek!)