Here's a question for you electronics gurus.
I've never been particularly fond of the resistor for the fan motor control.
A replacement option would be to use a PWM controller such as
http://www.ebay.co.uk/itm/12V-30A-DC-Mo ... 3376f87d9c
That one's rated at 30A, would it do the job, is 30A sufficient, should I just learn to live with the cruddy risistor?