Westside is the third Trilogy brand, moulded by Latitude 64, and Westside says so itself: VIP is more than 98 per cent the same as Latitude Opto, and Tournament is closely similar to Gold Line. BT is the putter blend, the relative of Zero Line and Dynamic Discs Classic, sold in Hard, Medium, and Soft.
That’s the whole range: three plastics, each with a Latitude parent.