r/638Baritone

Hi all. Bought a 638 on a spur of the moment and I’m a fan of Machine Head who tend to use drop B or C# standard. From some reading it has suggested that for the higher tunings it’s better to have lighter strings to reduce neck and string tension.

Any recommendations on what would be the lightest strings I could use with this tuning, bearing in mind the reverse headstock requiring very long strings?

Cheers.