Have used a 980 frame before, but small (52cm x 54cm; c-c) frame and small rider (145 lbs). I think 980 is thinner than Columbus SL, and I could flex my 57cm SL frame; my smaller SL frame is much stiffer. If I was 25 lbs or more heavier and/or stronger I would opt for a different frame; but that depends on multiple factors not addressed.Anyone have any experience of riding or building with this venerable tubeset? At 1507gr for the bare tubes it was supposed to be a direct competitor for Reynolds 753. I've seen a nice track bike in 980 but no real world clue about it