I'd guess the 1.75" is too big, and 2 feet of length is definitely going to be too much. Get hold of the stainless steel turkey baster (its not expensive) for your first couple runs, after that you will have a great idea what makes a good tube.
Running large amounts at a time will generally result in a lower quality product, and a less efficient extraction. Also, purging more than about 5 grams of oil on a pie plate is very tricky, and can lead to some less than ideal results by itself.
Stick to the smaller tubes, you will prefer the results.
Running large amounts at a time will generally result in a lower quality product, and a less efficient extraction. Also, purging more than about 5 grams of oil on a pie plate is very tricky, and can lead to some less than ideal results by itself.
Stick to the smaller tubes, you will prefer the results.