DH is incredibly fussy when it comes to meet. There can be no fat and no 'chewy' bits. When I cook Roast Lamb, I quickly fry the joint to seal it and then transfer it to a large cooking pot, fill it with stock and mint and basically boil it in the oven for around 3 hours at 160. Do you think this would work with a topside of beef? If not can anyone recommend any alternative methods?