Can I use fewer clips if the panel weighs less than the combined pull out load of the clips on my panel?

No. Our clip layout recommendations are designed to allow for even distribution of the clips, so that the panel is held securely and evenly to ensure a flawless appearance (See our Clip Layout Guides) and ultimate panel safety. In calculating the Clip Layout Guides, we do our best to include factors like possible seismic G-forces, impact, flexing and thermal expansion. Placing your clips excessively wide, such as 600mm apart, or using too few clips may contribute to the panel sagging slightly between the clips, depending on the panel stiffness.