hi Jannie,
t would be fine to leave them on, imho, until you feel that there is a change in tone
i was just wondering if the wound strings are copper or gold in apeearance,
as your GC3 should have orignally come with Elixir 80/20 NanoWebs
the PolyWebs have a much thicker coating, as the strings are wound the coated &
are more 'white' in appearance, which is most noticeable at the bridge pins
i believe the NanoWeb PBs have a thinner coating than the NanoWeb 80/20s,
so they may have a 'less slippery' feeling than the Nano (& Poly) 80/20s
i used NanoWeb 80/20 on a 314ce & after 2 weeks (around 50 hr, or so, play time),
the picking & fretting areas on the wound strings were dark & 'fuzzy' -
tonally, they were not 'dead', but i decided to have them changed at point