Check with your water prior to arrival, regarding permitted boilies. Some fisheries provide you with bait by arrangement and allow no others, even if you can buy the same brand in this country.
I have taken a number of baits, Badger products being amongst them, only to have to break them up and bulk up my vitalin.
As for the Badger specifically, I've found that their texture soaks up flavoured oils and this is how I've fished them. The results are no better or worse than others I've used.
Whether here or in France I've always slipped in an esterberry when nothing else appears to get results and they haven't failed yet.
Deecy's advice is just about spot on. However a dozen glug pots holding 12 of your favourite hook baits are always nice to have in reserve....... Should you ever need to use them discreetly.