I grew up on sailboats and appreciate the speed, convenience, visibility and comfort we enjoy on the Tugs. I only miss the fuel economy! We started with a 2015 R27 (classic) and moved up to the R31-S after 3 seasons. On a typical 150-200 mile cruise, the R27 averaged over 2.0 NMPG, while the R31 averages about 1.7 NMPG. There are significant space improvements going from the 27 to a 29, and 29 to a 31. The inboards offer some nice advantages, such as less LOA not having engines hanging off the back, and engine-cabin heat while motoring. Comparing the new R29 to the R31, there seems to be more cabin room in the 31, specifically in the dinette setup, and a much larger cockpit, especially with the bump-out seats on the R31. One feature the R29 owners may not see as a must-have is the starboard captain's door, which I find to be a deal-breaker in favor of the R31.