Keurig users...help!

OK boys, here is the skinny on the Keurig B70...I did the math and this is not gonna work out for me in its current state: Coffee bag says 1.5-2 tbls of ground coffee per 6oz of water. Im thinking 6oz is a "cup of coffee" as it seems to be everywhere. 2 tbls of ground coffee is 10g. That is precisely the weight of 1 pod of the stuff I bought. Now that tells me that this pod is only good for 6oz of water. Heck, I was pushing 10oz of water through it, that's the Keurig B70's largest water output setting. No wonder it looked like tea! I was putting a 1/4 cup of ground dark "French Roast" coffee , or 4tbls (20g) into a 16oz Yeti sized cup, thats what the coffee bag ratio said...4.5-6tbls per 18 oz or a very full Yeti. Looks like Ill have to use 2 pods for 2 6oz servings to get my Yeti 2/3 full. Economics do not add up here. Great for the office, not so good for the road.