Most comfortable passenger backrest and topcase?
I'm a new member posting for the first time.
The choices for topcases is huge, and a bit overwhelming to me.
I have the means to buy the "best" quality, and that can be a "squishy" term. Best to me includes a comfortable backrest for my wife when we ride two-up.
I see many pictures of fitment on this site, but little in the way of discussion about what the SO (Sig Other) thinks about the ride.
I'm asking for recommendations of top case equipment that includes what a passenger might consider to be "comfortable".
I guess I should mention other things that would be important to me for selection. I'm very handy with tools, so a complicated install does not shoo me away, but ease of install is a big plus (bewildering array of mounting plate adaptors). Eventual install of panniers / side cases planned, so I would likely desire their side cases in future. 45L+ top case is where I'm leaning, might settle for 35L+ if 45L too big to provide a comfortable backrest. Lighted in back for brake / turn signals. She likes "organic" looking moulded, rounded cases. I prefer square (TraK-like) for the utility and increased storage capacity, but I also think the pics I've seen of the square ones would likely be very uncomfortable for a passenger, with or without a back rest pad (and I could very well be wrong about that).
I bought the non-adventure model, stock.
Thanks very much.