While its potential is that of a medium-heavy to heavy oil ball, it comes with a sheen and not a matte/dull finish and its normal ball reaction for an oiler is to go longer than many others. This built-in length allows the ball to also be used on less tham medium-heavy oil for those with less than average revs and for those who are speed dominant.
Realize also that it has a lower RG differential than average (one reason for its natural length) and this makes it flare less than average and thus makes it less sutiable for deep inside lines, DEPENDING on your ball speed and rev rate (YET AGAIN). Remember that although it flares less than average, it still flares and it has a relatively strong cover than can be made more grabby by cover/surface adjustments.
Do not make any assumptions about any one LM/LO ball until you have tried at least one other Lanemasters/Legends ball.
"None are so blind as those who will not see."