I have a pair of Suplex front shocks and springs, one of them is leaking but the other seems fine. The idea was to get them modified and repaired by SSL when I talked to them but that never materialised. If you want to make me an offer on them? I know that the original Suplex shocks worked well. The car I test drove back in 2012 was on them, unlike my car when it arrived a year later on the Spax, complete with terrible bump steer.
I can tell you that the ATR's work pretty well, half the price of Ohlins but not a whole lot different in ride.