I think the people advising you to buy full cassettes are those that shop online and see the SRAM PG-950 11-34 9-speed cassette for as little as $30 shipped to your door, and see the Shimano HG61 12-36 9-speed cassette for as little as $48 shipped to your door. I think they are just cutting to the chase, since there is no readily available 36t cog.
I'm with you on the notion of trying to do the minimum to achieve the particular goal. I try and do that, too. In this particular case, though, the minimum that has a high likelihood of success might just be to spend the $48, Bob's your uncle, low gears achieved. Not all that satisfying from a bike tinkering perspective, but your knees will love you. Best of luck whatever you choose. -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To view this discussion on the web visit https://groups.google.com/d/msg/rbw-owners-bunch/-/3k-_Znw6uAsJ. To post to this group, send email to rbw-owners-bunch@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.