I would like to up grade the amps going to my garage so I can run my saws and power tools with out dimming my shop lights. I currently have a old style fuse box in the garge feed with 12ga uf cable run off a 20amp circuit breaker in the service panel. My plans are to replace the fuse box with a new G.E. subpanel 125amp 6/12. Replace the uf cable with 6ga. 4 wire run through 1" schedule 40 PVC. I figure future demands warrant overkill on subpanel & wire size. Current demands will not exceed 23amps at any given point in time since I can only use one power tool at a time. Local codes dictate GFCI outlets in the garage. My question is this: Instead of individual GFCI outlets can I install GFCI circuit breakers at the subpanel or can I use a 2 pole GFCI breaker as a feeder breaker?