I also have always thought that Naiktha looks SO much happier playing doubles.
I've seen her live, several times, in doubles and singles, and she can really be quite glum in singles, it's all an effort - but she cheers up no end playing doubles
Maia is also far more suited to doubles - her skillset is more dubs based. So it's great they're doing well.
Would be nice, LTA, to give out some nice Wimbly doubles wildcards this year