I have been looking for information regarding the power (kinetic energy) of the different combination of number and diameter of bands used in Euroguns. I understand that different fishing strategies require different setups. Anyway, it seems to me that even under similar conditions, there is no clear preference for a given combination. I think it would be interesting to know which particular combination of number of bands vs. diameter is most common, if any. Finally, I would like to ask you a question. It is correct to say (assuming all other factors are identical) that two 16 mm bands can produce about 30-40% more power than one 20 mm band? Thanks for your comments and votes.