I have a few bars that need knocking in and when I went to visit Paul @ IJC he was very complementary of his and said it sped up the process. I hate knocking bats in and have 3 to do.
I've emailed the guys at elviar.co.uk but in email dialogue he said this
Lignum is significant more dense than oak, the grain is "cross hatched" and very tight unlike oak which has an open grain. The advantage is in more weight and density in the same footprint. You might "pound" a best with an oak or other wood mallet, whereas with lignum the weight of the mallet head does the job. Overall the advantage is more efficient working and less time knocking in. But like anything the skill of the end user is most important - in the wrong hands a lignum mallet can wreck a bat like a sledge hammer.
I'm very much in the wrong hands category. Assume he means you don't just start smashing the bat as hard as you usually would with a normal hammer? Anyone got one of these and care to share any advice?