@lpskier, while it is true that the ZBS matrix did not appear in the rule book until after it was adopted in 2017, I happened to ski at both 34 and 36 (as IM and OM) since 2015 (before ZBS was adopted) and received the same scores/buoys/points for those performances that are assigned to those line length and speed combinations. Exhibit A: Below are some scores from late 2015 into late 2016. The actual screenshot is dated 8-29-2016, which is before ZBS. And, there are also scores from the ski year 2022. You will see 34 and 36 mph scores intermingled and I am receiving the same buoys for similar performances. So, those values did not change after ZBS. Please note that the 2022 screenshot from today does have errors associated with the division for those scores. For some reason, USA Water Ski re-classified all of my 2022 IM and OM scores to M5 in the last month or so. I skied tournament 22M021L as IM and 22M016C as OM. I did ski other tournaments as M5 at 36 mph and those scores are properly categorized. I have notified them of this error, which is currently inflating my M5 ranking score erroneously. Your witness.