It looks like pre-CW, the Reschke winemaker was Peter Douglas (ex Wynns chief winemaker). If this site is correct:
Reschke Wines, then the following are his wines:
Bos CS: 2007-2009
Coonawarra CS: 2010-2012
Empyrean CS: 2004, 6 & 8
Rufus CS: 2010-2011
Vitulus CS: 2011, 12, 16
Bull Trader CS: 2006, 8, 9
Bull Trader Shiraz: 2008-2010
It gets muddy after that, until CW took over and apparently Ben Wurst is the winemaker for Reschke now:
winestate.com.au
"All the current Reschke wines are made by senior winemaker Ben Wurst, who has decades of experience in the Coonawarra region"
Ben's history (as of 2011):
Studied Oenology at the University of Adelaide graduating in 1998. Completed a vintage in McLaren Vale in that year at Andrew Garretts. Moved to Port Macquarie to work as winemaker for Cassegrain Wines from 1999 to mid 2001. Henceforth moved overseas, lost a year in London, before doing a vintage at DuToitskloof Wines, Breede River Valley in South Africa in 2003. In the same year completed vintage throughout the Languedoc region on behalf of Jacques Lurton. In 2004 completed vintage at Islander Estate Vineyards on Kangaroo Island. Commenced employment as winemaker in Coonawarra at Katnook Estate from late 2004 to September 2011, before taking up employment at Great Stone Wines.
I also found references of him becoming the winemaker of Terramore since 2011