It seems like youre getting good use out of your gears. However, you do have a few options

1) Keep the triple crank and get a close ratio cassette. This will allow for smaller jumps between shifts and allow you to keep your cadence. A 26t granny with a 28t large cog is plenty low

2) Go for a double crank with a slightly narrower range cassette. Doubles are less problematic than triples and have a lower Q factor. A 110BCD crankset is very flexible, allowing a 34t inner. With a 30t large cog you have a pretty low gear for hilly roads. If you want to drop some weight, this is your best option. A hollowtech II crankset will drop about a pound from your setup.

Or just leave it as is.