[masraum]

I got a wetsaw when I did my granite counter tops, but I did ~900sqft of floor with 12" tiles with the two rod and a scoring blade cutter that you have. You should be able to cut the 1/4". Go ahead and accept the jagged edge and then use a pair of nippers to trim that. With the nippers take off little pieces at a time.

I used nippers to cut 6" quarter round cut-outs in some of my tile when cutting around the drain pipes for toilets. The secret is to score the tile and take very small pieces out with the nippers.