I could not agree more with the advice to get a two bolt seatpost. One came on a new gravel bike I bought and it made such a difference I bought one for my other bike. Great piece to aid in making exacting changes to my seat. I had back surgery in 01 and the seat placement is critical to my enjoyment on any bike. Sounds like you are on the right track and have gotten some great advice from the previous posts. Be safe.