Is it bad form to answer my own thread?
OK I did some digging around on several 'less reputable' homebrew sites, and found that there is a bolt on module for devhook .46 that switches off auto umd booting and also adds a back to 1.50 reboot by pressing home+start.
The module is called:
vShex mod v0.3
Real easy to install and set up. Highly recommended to any devhook user