I like Skol
A Minging Manc...
- Location
- Sunny Ashton-under-Lyne
I think the OP already has the bike they want/need. Chasing the elusive weight savings is pointless IMO and doesn't make a difference to a commuter bike. To check the factory weight of my bike I just googled 'GT Traffic 1.0' and spookily up popped images of my hybrid and my MTB 
It seems everybody so far has recomended their personal preferance rather than considering what the OP has described as his preffered needs. The mixed use, including some mild off-road, and the otherwise satisfaction with the existing bike suggests to me that the OP might just be better keeping the current bike and maybe spending on some better wheels and maybe dropping down a tyre size.
By the way, the factory weight for my bike was 27-28lb and I know it is more with the junk I have bolted to it but I never find it particularly heavy, even after riding my road bike.

It seems everybody so far has recomended their personal preferance rather than considering what the OP has described as his preffered needs. The mixed use, including some mild off-road, and the otherwise satisfaction with the existing bike suggests to me that the OP might just be better keeping the current bike and maybe spending on some better wheels and maybe dropping down a tyre size.
By the way, the factory weight for my bike was 27-28lb and I know it is more with the junk I have bolted to it but I never find it particularly heavy, even after riding my road bike.