Hi David,
I would recommend keeping the H16 if your only going to keep one of them. I recently switched from monohull sailing to sailing a Hobie 16, and I must say that I'm loving it. It doesnt really take much effort in terms of learning to sail the H16 if you've been sailing monohull. But until you find a trainer I suggest downloading the following file ..
http://www.hobiecat.com/support/pdfs/HobieU.pdfIts a 'how to' booklet that I found very beneficial. I didnt really need any training to adjust to the H16, the booklet had all the information I needed.
Enjoy your new cat