And then there is the factor of weight and overall "luckyness" of a design. It is interesting to read the test of for instance X-yachts XC-series of yachts. Being very similar from 38- to 50-feet, the test resultats are rather different. The 50-footer got rather dissapointing verdicts in regards to sailing characteristics while the 38- and 42-footer came out great in the tests.
The Opium 39 and the RM1060 should both perform very well, looking at the specifications, especially the weight, but in german Yacht test the Opium last spring came out very well (9,0 knots at 90 degrees, 8-11 knot wind) but the RM 1060 as tested in the last issue did not achiew much more than 7,4 knots at 90 degrees, 12-15 knot wind despite rather windy conditions.
It seems that hull and overall design is still very difficult despite all modern tools.
The Azzuree has got rather mixed tests both in german yacht and in the english magazines. They all recommend the lighter but more expensive version.