^ Great recommendation from Bean on the replacement Rycote lyres. Be prepared to wait to get them though, as they are special order items. I bought a couple sets of the softer-than-normal 62 shore lyres to hold my extremely light CM3s, and it took almost 3 weeks to get them as they are a special order from the distributor. It was worth the wait though, as they were a major step up from the Schoeps A20 knockoffs I was using (and the actual A20 mounts I've used as well).
http://www.performanceaudio.com/item/rycote-modular-lyre-set-19-25mm-soft-2-pack-/33477/While researching that though, I emailed Redding since they are the US Rycote distributor. They told me that you can special order any of the INV mounts with the lyres of your choice - you just have to contact them directly, and specify which dealer you want to purchase from. That would save you quite a bit of money if, for instance, you wanted the INV-6, but needed the stiffer 82 shore lyres. Otherwise, you'd need to pay $62 for the mount with the stock 72 lyres, then an additional $29 for a pair of the replacement lyres of your choosing. Of course, it could be useful to have both if you have mics that are a variety of weights.