The TIER model is a designer tool for designing technical instructions for extended reality (XR) environments. This article reports a pilot study towards validating the model with user preconceptions towards XR-based technical instructions. Understanding preconceptions is important in user-centered design. The pilot test entails the presentation of instructions for a LEGO construction task via video and VR. The results indicate interest and willingness to test XR-based solution, but reluctance for regular use. The TIER model showed how the model supported the process of recognizing preconceptions and operated as a tool for an organized design process of XR-based technical instructions.