I've been watching RM Custom Calls website for about 2 years now. I've ordered 2 prebuilt cold weather fans, and I really like the calls. I would like to go about getting a custom call, however, I have yet to visit the website and not see "custom books are open." Ive only ever seen "custom books are closed." I check every day. Sometimes a few times a day. Is the window really that short to get in a custom order? Or is there a custom call hiatus?