Well, that's settled. I believe I'll never again do a tri-tip roast on the grill, except when camping. Here was last evening's dinner preparation before heading off to the oven. I believe the only thing on it is rosemary, savory, and a bit of salt & pepper. I don't often do potatoes, but we had guests. I ended up eating 2 or 3 of those sections, so less than half a potato. However, it has been a long time since I've believed that the potato has much or anything to do with obesity or diabetes. It certainly helps to avoid them when trying to loose weight, but in the long run, you especially need to be off grains of all kinds, vegetable oils, sweets, and of course, all the processed frankenfoods that abound. A potato now and then? Not an issue, in my book. Into the oven it goes, 250 degrees. I recommend getting one of these handy meat thermometers so you can monitor in real time when cooking. Up here at the cabin, I only have an instant read, so you've got to keep popping the door open once you begin testing. Of course, cooking at low heat anyway...