Yes m8 pre shave is the best way but make sure you don't press on to hard and go in all directions to ensure a smooth shave. it's best to shave first thing in the morning before you have a wash get a better shave.
Not all expensive aftershaves are the best depends on people metabolism and skin, some of the cheaper ones smell nicer on some people.
I bought a Phillips CoolShave but I've given up on it,no matter on much Nivea anti irritation cream I put on my neck I always ended up with a nasty rash which lasted a few days.
Gone back to wet shaving now