We have a new xtracut and it is putting out blocks of bales in short grass , they are sagging a good bit after a day but it's dairymans grass , short and green . It is raked in 30fts and we can adjust the width hydraulically so I leave it as wide as I can for the pickup and drop the crop roller , i also drop the knives or maybe leave up 8 as its short anyway , also run it at full density in that grass .I don't think any baler would make a better bale in the a lot of the grass I bale . There should be no difference in the way a jubilee/xtracut or profi make a bale as they all have the same chamber / pickup and locking mechanism, the rotors are different but that shouldn't make much difference in bale density .