I'm converting to the ET from Head Graphene Speed Pro (2018 version). They are similar in terms of specs (318 SW, 6 pts HL) with some slight differences (ET 11.4 oz strung vs 11.5, ET RA 65 vs 62, ET beam width 22/23/21 vs SP 23 across, ET head size 98 vs SP 100, and ET pattern tight 16x19 vs SP...