Hello there! Thanks for your feedback. We understand that switching the WG163 from edging back to trimming can feel difficult at first. The design does require a bit of leverage: for best results, remove the battery, place one foot firmly on the cutting head to brace it, then unlock the shaft collar. While keeping the head steady with your foot, pull up on the handle and rotate the shaft back to the straight trimming position until it clicks, then lock the collar again. This bracing step helps prevent the head from turning and makes the rotation much easier. If you continue to have trouble, our support team is happy to help—please reach out to us at worx@positecgroup.com. Thank you for choosing WORX!