If the displayed weight feels too heavy or not heavy enough, press Select Bar in the lower-left corner of the XP1 active user screen and ensure that you have selected the correct bar type. The Cook Bar is ~5 lbs, the Light Bar is 11 lbs, the Standard Bar is 45 lbs, and the Advanced Bar is 65 lbs. If you have chosen the proper barbell and it still feels inaccurate, please contact us at https://support.oxefit.com/hc/en-us/requests/new.