I'll post this up as a separate topic out of the group buy thread.
For those that have participated in the group buy 2013 of Suber Lefort mini staves (dominoes) - MSA42, and are wondering about dosage, this is my guidance.
Start with 1 dominoe per litre, about a 10-15cm length per litre of 60-65%abv.
The spirit will colour up within days and will gradually deepen over time. Initially dominoes float, then they sink to the bottom.
You can go more dominoes if you want to colour up fast, but remember to remove some for longer term aging. (Sample regularly, you don't want to over oak).
It is really personal preference as to whether you char them more for bourbon/rum.
I initially did my UJSM/bwko without charring the dominoes, and it was good.
Then I started extra charring them, and I liked my UJSM/bwko with the extra char.
If you haven't used these before, split your spirits in half, and do half-half. One half without charring and one half with extra char.
For charring them extra, I've used the gas soldering torch, the gas stove hotplates in the kitchen, bbq burner whatever.
I just give them a fairly short burn/charcoal all over. Dunk in water or blow them out. Use metal tongs!
About the oldest spirit I've had on these dominoes was a rum, aged about 7 months.
I'm not a rum drinker (since bad uni days on bundy ), but this rum was smooth straight up and a decent colour.
Hope you all enjoy the results.