Assume you have 100mm of FN 6% MBS pass-throughs priced at 102-00. You wish to create 50mm of a 5% stripdown security to sell at 100-00. a. Illustrate a simple 2 tranche CMO structure that can be used to create this (with tranche A being the 50mm 5% stripdown passthrough). b. What is the breakeven pricing on the second tranche?.