If the guy can map it, he can fit 4 blues i am VERY sure. Its a max of 5 mins, 15 if you have to fit the kit and modify the pintle caps, which is another issue... you know they need modding right?
Maybe thats why Dougs fella melted his, perhaps he fitted std bosch pintle caps.. hic hic, splutter, purr..... pop!!
Be carefull out there folks...