RHO opens both majors and we have 14 balanced

[mikeh]

I don't know if you checked the link out (it's 6 years old), but it sounds like you are using the 5+ both Majors defense, and that is the one I would be using here as well. Double is my first choice, Pass would be second, and 2NT comes behind 3♦.

 

I don't know what Kokish would say, but I would use the 5+ defense on 5-4 either way, or 5+ Spades 4+ Hearts. I'm unsure on 5+ Hearts and 4+ Spades, but for simplicity throw that under the 5+ as well.

my notes say that double shows the same hand whether they are 4=4 (or better) or 5-5...iow, no difference. I got these direct from Kokish, not via any link...he was providing some coaching help to my team.