Although the IMC Rating mandatory UPs are very gentle compared to the sort of thing we used to have to recover from during a Bulldog military IR, I would always conduct such UPs only in an area which met HASELL check requirements.
Mark you, one cheating little $od kept peeking out during basic IFin the 'dog, so he did indeed spend the next 40 minutes doing real IF in actual IMC. Fortunately the injector carburettor in the 'dog didn't suffer from induction icing to anything like the extent that the simple thing in the PA28 does! But even then I drew the line at UPs - however, his limited panel work improved somewhat!