Hi there, I am wondering, the G-Shocks with the small metal buttons require the least physical effort to press. Are all the Gs with the plastic or rubber buttons hard to press? My experience is with the GW-9000 and GW-5500. Those buttons are one piece so there will be a natural resistance. Are all Gs with plastic buttons made like this? Or are they individual plastic buttons that are as easy to press as the small metal ones? I am looking to revise my collection and don't want any more watches with stiff buttons. Many thanks!