If you are fishing for large, selective fish that have been well educated and very hard to catch, YES you should. To be successful in this type of fishing you must use very long leaders terminating at 6x or 7x, usually very small flies size 20 to 26, with very precise and delicate precentations, the ROSS Evolution Reel should be your choice.  If your reel produces any amount of start up torque you will break off every fish you hook. If you don't partake of this level of fly fishing sport at this time then a reel of good quality and dependability is just fine, such as the ROSS Cimarron