I'd say I'm fairly new to motovlogging and the way I try and do it is try and come up with a topic and go from there. I do ramble sometimes and have often find myslef having to re-shoot. One thing I try and do is to try find roads or two points that are spaced out for about 10 mins as that is how long I try and aim for. When I'm watching vlogs I like to watch vlogs that are somewhere around that 10 minuite mark. I do like Gromie Bears videos at 15 minuites a I find them a little long and I don't tend to watch.