In article ,
Jim wrote:

I have experienced stall buffet at 60 degrees of bank in a thermal
in a DG-505, and I fly with a forward CG. Granted, stall buffet is
not yet a stall, and the DG's stall characteristics may be pretty
benign, but I no longer trust that a glider will be hard to stall in
steep turns.

I haven't flown a 505, but I've tried a DG-1000, and it has a *lot* of
available elevator power compared to most recent training gliders. The
thing can not only be held so deep into a stall that it will virtually
always drop one wing or the other, it can be flick rolled! (and the POH
permits that, with the 18m tips on)

But it gave so much notice that you were dicing with the stall that I
wouldn't be at all worried thermalling it slow.

-- Bruce