A flexible catheter tip, comprising: an inboard understructure (120', 220) that defines a tip longitudinal axis (b"-b"), wherein the inboard understructure (120', 220) is formed from a first continuous element that includes a first rectangular cross-section; an intermediate inboard covering (200, 230) disposed about the first continuous element that forms a distal portion of the inboard understructure (120', 220); an outboard understructure (170', 242) that extends along the tip longitudinal axis, wherein the outboard understructure is formed from a second continuous element that includes a second rectangular cross-section; and an intermediate outboard covering (210, 240) disposed about the second continuous element that forms a distal portion of the outboard understructure (170', 242), wherein the inboard understructure (120', 220) is an inner understructure and the outboard understructure (170', 242) is an outer understructure; the first continuous element defines first and second inboard arm understructures (121', 122') and a first head portion connected to a distal end of each of first and second inboard arm understructures (123', 124'); the intermediate inboard covering (200, 230) is disposed about the first head portion for covering edges of the rectangular cross-section of the inboard understructure (120', 220); the second continuous element defines first and second outboard arm understructures (172', 174') and a second head portion connected to a distal end of each of first and second outboard arm understructures (176, 178'); the intermediate outboard covering (210, 240) is disposed about the second continuous element that forms the second head portion for covering edges of the rectangular cross-section of the outboard understructure (170', 242), and each of the first and second inboard and outboard arm understructures (121', 122', 172', 174') carries a plurality of electrodes (102, 102-1, 102-2, 102-3, 102-4). an inboard understructure (120', 220) that defines a tip longitudinal axis (b"-b"), wherein the inboard understructure (120', 220) is formed from a first continuous element that includes a first rectangular cross-section; an intermediate inboard covering (200, 230) disposed about the first continuous element that forms a distal portion of the inboard understructure (120', 220); an outboard understructure (170', 242) that extends along the tip longitudinal axis, wherein the outboard understructure is formed from a second continuous element that includes a second rectangular cross-section; and an intermediate outboard covering (210, 240) disposed about the second continuous element that forms a distal portion of the outboard understructure (170', 242), wherein the inboard understructure (120', 220) is an inner understructure and the outboard understructure (170', 242) is an outer understructure; the first continuous element defines first and second inboard arm understructures (121', 122') and a first head portion connected to a distal end of each of first and second inboard arm understructures (123', 124'); the intermediate inboard covering (200, 230) is disposed about the first head portion for covering edges of the rectangular cross-section of the inboard understructure (120', 220); the second continuous element defines first and second outboard arm understructures (172', 174') and a second head portion connected to a distal end of each of first and second outboard arm understructures (176, 178'); the intermediate outboard covering (210, 240) is disposed about the second continuous element that forms the second head portion for covering edges of the rectangular cross-section of the outboard understructure (170', 242), and each of the first and second inboard and outboard arm understructures (121', 122', 172', 174') carries a plurality of electrodes (102, 102-1, 102-2, 102-3, 102-4).