It seems a matter of a person's perspective as to which method to use to prime their beer. If someone likes to prime each bottle, then that's great. If someone prefers batch priming, that's great too. The important thing is to know the pros and cons of each which are pretty well covered above. I have read from John Palmer (I've found his info on beer making reliable, here in the US at least) about batch priming from the primary or FV. You can check but he wrote to stir the priming solution gently in the FV and then let it sit for X amount of time for settling purposes. I'm not keen on waiting so I just transfer to a bottling bucket on top of the sugar solution. This transfer is the first time I open the beer after adding yeast, anyway, so I'm not too worried about exposure. For me it's three weeks in the FV, FG reading and then bottling bucket for batch priming. ***I am not recommending taking only one FG reading but it is what I do.*** Pulling the beer off the trub or yeast cake still needs to be done gently/carefully whether it's into the bottling bucket or straight into the bottle. None of my vessels have taps so it's only been siphons for me. I do have to clean the siphon well but I am happy not to have to worry ever about spigot/tap cleanliness or leaking. I have a helper each time I bottle (using a siphon and bottling wand) so that is also something to consider.