If I was going to start again I would get two professional log books, fill them in in parallel and I would keep an excel backup. Also top tip write your name on the top and bottom across the ends of the pages. That way when you are trying to find your log book in a pile of 25 other identical ones you don't need to open every book.
The reason for two paper logs is you occasionally have to send your log book to the caa. I always send my number 2 logbook. They haven't failed to send it back yet, but if they did I still have the number 1 logbook.
The reason for the excel copy is it makes adding up the type time soooo much easier. I'd be wary of commercially available electronic log books. When they fold what happens? I've used them blissfully in the past until I upgrade from windows 7 to 10 and then you find it's not supported on 10.
It all sounds an arse but when you pay £400+ per hour make sure you don't lose any of it. Enjoy your flying.