Hi there! I'm in the process of buying a loom and would like to explore more information about Drawloom weaving before finalizing my plan. I'm very much interested in Drawloom weaving and would like to make sure that the loom I buy never needs to be upgraded. I have the option of purchasing it with the extension and harnesses for either 21or 51 harnesses for Drawloom. The basic loom will be 16h. My questions are: 1: is it a problem to weave basic 16h work with the second set of harnesses on the loom, or do they get in the way? 2: I understand that to convert to Drawloom work, I would need to simply change the heddles on the ground shafts?? 3: my options are either 21or 51 pattern harnesses. If I opt for the 51, the loom will take up 8.75 feet length of an 11.5 ft long space. That surely doesn't leave much wiggle room for working. On the other hand, to get the 21h set-up would give me an additional 20" of wiggle room around the ends of the loom. Will I regret not having the 51 pattern shafts and wish I simply committed to squeezing around the loom? Or does 21 harnesses leave plenty of potential for pattern drafting. I have at about a year before the loom ships, so I have time to chew on this. It would be helpful to have input from those who have worked with drawlooms. I have a great deal to learn, but for my forever loom, I can see enjoying the process of learning to work with the Drawloom Thanks so much for your feedback!