Hi all, Some of you have ordered the PAE-Kx31 Heatsink, and the email addresses you gave are bouncing, so if you have not received an email from me in the last few days, please contact me off-list. All back-orders for the heatsink have now been filled and the heatsink is in stock. See you in Dayton! Howard Hoyt - WA4PSC www.proaudioeng.com