The Idol Synergy features the clean and responsive eTrax hybrid cover and powerful symmetric Ikon core. The eTrax formula has been featured on the majority of HP3 and HP4 balls the last couple years in a few different forms and strengths, but only one other time as a hybrid in the Halo Vision. The clean and responsive nature of the cover formula in combination with Roto’s heavy rolling and dynamic stronger cores like Ikon in the top end of the catalog creates a balanced reaction that offers both stability and lane control with plenty of steam left for a strong move down lane. The Ikon core comes in at a 2.49 RG and .052 differential in 15 pounds and creates a very recognizable round and even ball motion reminiscent of the Centripetal core from the Marvel series. The Idol and Idol Pearl have been popular choices among many of the pros, being involved in big money and major tournaments over the last couple years, and the Synergy takes the Idol idea and injects a little caffeine. With 1 being the lowest and 10 being the highest, I rate the Idol Synergy a 6 on hook, a 7 on length, and an 8 on backend.