To clarify - The poetry pages are in sub folders on the main site and are only linked from the main site on 1 or 2 pages. Gwmt counts all those pages as a part of the main site - a total of 382 pages with the main part of the site only taking up about 100 pages. So If I move them I'll loose a major portion of the site. I get about 5,600 visitors to the poetry pages per month so I'd also loose a lot of traffic that occasionally goes to the main part of the site. I also rank in top 10 for a lot of keywords on those poetry pages. Traffic to both business and poetry sites is organic except for maybe 5% referrals and most of the traffic is from Google.
I didn't even think to set the poetry pages up separately in GWMT. Is this something that will help the main site or hurt it?