The record keeping issue is one of the reasons I do not do it.
In 2009 I ran out of money though till I came in to more and accidentally did a delayed trade. It worked out well.
Also I have found I am happier starting a new account with LD Aim than converting an existing account. I feel the same about delayed trades. Maybe I am interested in oil as an asset class but didnt want to invest a few years ago. I can pretend I did and start an account now with very little cash knowing / feeling it is near a bottom.