Does anyone own or has anyone owned these hole punchers. I just bought the Staples Arc punch. I have heard that the Levenger Circa punch punches a bigger hole, so it is easier to turn the pages when installed. Is it true that it punches a bigger hole than the Staples brand Arc puncher, or is the hole the same size? Price is not an issue. I will get whichever one functions better. Will the Levenger last a long time, or is it just an expensive piece of junk? With the Levenger Circa Leverage punch, I estimate I can fit about 10 pages to punch at once (I will use 32 lb bond / 120 gsm). With the Staples Arc punch, I can only fit about 7 pages to punch at once, and most of the pages have come out slanted. I may have gotten a defective one. The slanted-ness may have been affecting the ease of page-turning and making it tougher, maybe even more so than the small holes. Should I be exchanging or returning?