I am torn between the Cannondale Supersix Evo, and the Synapse. I test-rode both, but I cannot tell without a day-long ride. I like the fact that the supersix has a fun racy geometry. I like the fact that the Synapse is smooth and comfortable. I wish I can afford both bikes, but I have to chose only one. I do not want to regret my purchase. Please help me make my mind. Thanks.