Posted for George Braly <gwbraly@gami.com>:
David,

Haven't told you the best part, yet.

For the folks, like you, with normally aspirated engines,  we intend to
certify PRISM with 9.5:1 compression ratio pistons (yours now has 8.5:1).

Thus, you could install PRISM when it becomes available, and then at your
next overhaul, put in the 9.5:1 pistons for the significantly improved
efficiency that will come with the higher compression ratio.

This should be worth about 10 to 15 Hp at 10,000'.... basically for free,
since it should be obtained on the same fuel burn.

We already have the first pistons machined and in house, waiting on the next
TCM engine certification run we do to get them approved.

Regards,  George