So i was bored and decided to do what my friend did to his racket. Taped 3 layers of insulation tape on my ES108(formerly known as ES10) such that it seals up the top of the isometric frame, tape covers outer grommets and a bit of inner frame on both sides. Did this for my Apacs Nano 900 Power as well, but this time, i tried different tape, it was insulation tape but came in a gloss finish, had 2 layers of this and one layer of the normal black ones. Played with them last night, the Nano 900 Power was incredibly heavy, feels like 2U, smash was amazing for tension of approx 21lbs, strings have lost a bit of tension from 23lbs. the ES108 wasn't as heavy but had a nice feel to it, well for a person who plays with head heavy rackets. Anyone else tried this? Lets hear your feedback!