Sorry if this question has been asked 100 times lol. I am going to be smoking some baby back ribs tomorrow, second time smoking. Was curious if you guys preheat the smoker or do you put the ribs in and then start it up. I have an electric smoker if that helps(Masterbuilt). I noticed I have to put chips in about every 30min to an hr. Is that normal ? I was going to smoke these ribs at 220 for about 6 hrs , so do I need to put the wood chips in for the 6hrs ?