Rolandlover,
The EXR7s is the best key feel by far. The GW-7 has very tiny keys, like an accordian. Also, the EXR3s and 5s don't have the goodies that the 7s does, so for the extra money, I'd go with the 7s.
zuki
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Live: Korg PA4X/EV Everse 8s/Senn 935/K&M stand
Studio: Korg PA4X/Yamaha DGX670/Nord 6D73/Boss BR900CD/Tascam DP24SD/MTM Iloud/Sony C80/AGK 214/ATEM Mini Pro switcher/K&M stand