Rycote sell the back-to-back clips on their own.
They will hold any mic. from 19mm to 25mm and the shape includes the flat-sided Sennheiser MKH 20/30/40 series.
Oh - and that design of stereo mount was my idea. I modified my own mount and Rycote liked the idea so much they decided to use it as their standard stereo suspension..
Thanks, great design John
I'd like to use it for M/S with a pair of AKG s300's or one AKG s300 with a Sennheiser ME66. Don't currently need it to do flat-sided Senn's as I don't own any.
I must be overlooking the Rycote part number for the "back-to-back mic clips" on their website, it looks like the way to go unless pricing is ridiculous.
Another option I found that might work is AKG's H300 priced at $80 USD though, which is really steep for what it is...
Pricing will be very reasonable.
Rycote have been redesigning them - the universal back-to-back clips are very new and they have been improving them with a rubber insert so the microphones cannot twist.
They should be available now, but when I last spoke to them they were not quite available.
I need three pairs myself for my own kits.
Drop an e-mail to Rycote in the UK to get confirmation of the part numbers and then get the price from your local agent.