Hi Roland,
Not with that type specifically, but with a Mini Nimbus C which is very similar aerodynamically.
No problem. Make sure the winch is powerful enough to accelerate quickly through the 'why aren't the ailerons working' phase. This should be quicker than with an aerotow even with a marginal winch, except without the prop wash which can help (with airspeed) or hinder (with prop wash rotation).
Be aware of the extra weight should the cable break and a landing is required. Be very careful if there's a large wind gradient as the glider will gain airspeed quickly as usual passing through it, but with a larger strain on the cable. (I think. I'm sure someone can prove it and another person smash that theory to pieces ;->
Brief the winch driver to take care of his end as if it were a heavy two-seater.
