Embodiments of the present disclosure provide ablation catheter systems and electrode assemblies and electrode baskets for use in the ablation catheter systems that include one or more struts that have a non-uniform thickness along their length to customize the strut performance The struts having a non-uniform thickness in accordance with the present disclosure may be utilized in electrode baskets that include any number of struts in any design formation. Common examples include electrode baskets having two, three, four, five or six or more total struts. Suitable struts having a non-uniform thickness along their length may be comprised of a memory shape alloy, such as Nitinol, from a thermoplastic material, or from a combination thereof. Electrode baskets may include thinned struts of different materials.
