[Q] XPERIA SP(c5302):need answer for these questions! topic

1.Is it possible to flash CWM recovery using flashtool
2.can I flash ftf file with bootloader unlocked
3.Will the flash tool detect my device if it is on a bootloop?
4.should I wipe dalvik cache and cache partition while flashing
custom rom. if possible plz attach a relevant link which would guide me
to flash custom ROM.
5. while flashing custom ROM from stock ROM is there any procedures
like flashing kernels etc.,