In my experience type A-IIIs feel very much like type Cs but are more readily available and last far longer, in case you're worried about the C wearing out too fast (when I used C as my main, mine would last for about 4 months each).
cmon F II is fine it doesnt turn bad. i mean the cube is fine u should change the core 4 a C4Y core and the FII ewll be even better than with its main core when it was new. also should use maru lube i havent try lubix in the FII.!