I was going to order a 34T Rotor MTB Q ring (http://www.velotechservices.co.uk/shop/vclose2.asp?prd=78058&cat=7408005617) for my Quest (I have a Shimano MTB 4 arms cranks). But it has only 12 holes and 3 possible positions. After reading John's article (http://cruzbike.com/adjusting-elliptical-or-ovoid-chainwheels) on elliptical chainrings setup, it seems it won't be enough to adjust to a Quest, or to any recumbent. Am I right? They are quite expensive and I don't want to buy something which won't work.