How did you download routes from the iPad to the Oregon? I wasn't able to figure that out, and assumed that function was not supported unless you had a Garmin marine network interfaced with a full-fledged Garmin chartplotter.
I'm using my iMac not an iPad. I'm going to download the BC g2 Mobile, Active Captain & North American charts for the iPad tonight and play with that. Sure with I could somehow load my SE Caribbean micro SD chart I bought for the Oregon into the iPad but don't believe that's possible.