Interestingly:
Gaby: 16st 1lbs 5ft 10in
Neil Back: 14st 9lbs 5ft 10in
And one of the best open sides I've ever seen (IMO).
Heinie Brussow: 16st 3lbs 5ft 11in
Players in general were lighter when Back was playing. No real reason why Gaby can't flourish at open side, if needed. Selection versatility.