On Wednesday, August 23, 2017 at 4:23:19 PM UTC-7, Ross wrote:
Buy a 27 with a jet. It is there, available and goes like hell
Best glider ever,
Except a libelle with a self launch E motor which will be available sometime soon

I looked at the PSR system, was going to put one in an ASW27. It might be OK for flat land flying, but unless something has recently changed does not have the stamina for mountain flying. Not enough fuel capacity, climb rate, or run duration at a power level that provides a climb.
With enough interest M+D will design a system for 27/28/29. It will be a good one, seen loads in JS1s. But perhaps don't try starting it in the rain, or you could end up in a field, taking breath tests and "walking a line" for Texas police.
Wait for the US 18m Nationals article for more detail.
Jim