Yes, on engines and build quality for the most part. The Branson has some heavier castings, especially in the rear. Same weight, in a smaller package than the TYM.
I personally thought the fit and finish on the Branson was better, but I bought a pre TYM model… so I’m not sure if anything has changed besides some paint colors.
TYM comes with a couple, literally, more standard features. I drove both, he had a 494 on the lot, and I still ordered and waited for the 4820. Others are very happy with their TYMs though