Thanks.
I have a Lane Breaker, and I wouldn't exactly consider it a ball for medium/heavy oil. It has Traxion Reactive 0.48, same as the NVD. When looking at the NVD it says "is a stronger version of our Traxion Reactive cover, Traxion Reactive 0.48. This cover has kept the oil absorption rate at 10.1 (the GB #) while increasing the Traxion Factor to 0.48. This increase in the number will allow the NVD to produce a stronger ball in higher oil volume environments."
I wasn't sure what the numbering system indicated. I saw they have a 0.39 (NVS), and a 0.45 (Complete NV) but haven't followed Ebonite releases, so I have no idea where those balls fit.
Common sense would say that 0.48 is stronger than 0.39, but with coverstocks you can't always use common sense!
My Lane Breaker works well on our lower volume, shorter THS, but I have noticed that sometimes it comes back without a drop of oil (gone by the time I take my next shot). Maybe I'll give it a hot water bath or the hook again treatment and see how it does.
