I am finding that as the years go on RnRc is getting a bit "less smooth". It could be the ride getting older and it could be me getting older!! I remember my first few rides when it first opened and I thought it was very smooth compared to others I have been on. Keeping in mind that we are wooden coaster fans - smooth is relative.
I prefer the front and find it much more smooth and I like the overall feeling better. The back can seem a bit faster but I also find it more rough. I like any seat in Space Mountain and definately prefer the back on BTMR much more fun! Last trip I had to take my post earrings out when I rode a second time, the first time the backs were smashing into my head.
TJ