I think it might be wise to down play, but suck out the classics from my resume, what do you get . . .
I use it as a spring board to start a conversation that my work in the classics means I work well with concept pieces, large casts (up to 50), up to 18 points of automation, work with fights, dance, choreography, vocal and dialect coaches, running multiple rooms, working on shows with long running time, paying attention to detail in the text, dealing with older and more established actors and actresses, and a host of other things working on the classics gets you.
Know, in a cover letter, I may highlight different things ("Like, although you can see I have a extensive experience in Classic theater, you can see that in the past two years I have Production Stage Managed two high profile musicals, working with a two Tony Awarding winning artists on the new work.") Enough to get the dialogue moving.
Although, although I do still my resume out, it's basically a calling card now - I have enough of a name, at least regionally, I usually get an interview if there is any chance at me getting the job.