I just recently acquired this Bianchi frame. The decal says it's slx. I'm curious to know the year and model, but having trouble. The decals look 88-89 ish but can't tell if it's a super leggera, giro, or Mondial. I know there are small differences but I'm not expert enough to notice. Was wondering if someone can help me. I've read alot of posts here and it seems like Bianchigirll is the ultimate expert. Any details would be helpful. I'm not going to sell it. Just going to build and ride.