That looked like it was fairly controllable compared to some of the others. The full auto SLR use to climb were as the M14 dose down/sideways. The Bren was very controllable in full auto. Mind you it was much heavier too.

Best battle rifle of all time to me is the AK47 (limited accurate range though), the Israeli Galiel, the SLR (those modified with the sand groves on the locking block) the M14. These above the SMLE simply because of fire power they can put down and these are almost as reliable as the SMLE. Just my 2 cents worth.