strudel

No, I think you are on target. That's 10 lbs a month. I was just sleeved this week. But my next door neighbor has lost 52 lbs in 7 months. ..... So you are doing well.

I just rode my first coaster in 12 years! I am 9 months out, but it took me that long to be able to fit in the seat! No problems with anything on this end unless you count the major rush that made me ride Manta at Seaworld 5 times!
Have Fun!

Personally, I wouldn't see roller coasters to be an issue. I'm looking forward to riding one, hopefully soon. My surgeon cleared me for all activities (as long as I felt ok doing them) at my 9 day post op appt. I'd say as long as you feel comfortable riding one, go for it!!