I have owned an hypersonic wood 105 and now isonic 105 dram.
On real flat water there is no real difference between wood and dram.
In the chop a dram is harder to get on the chop.
In waves the dram is also harder to keep high speed.
I found the hypersonic and isonic very fast boards. I have to admit that I am a starboard addict.
Only thing is that the prices are very high. I could buy an isonic dram last year. It seems that the wood boards are even more expensive than last year.
I am saving money for Is87 and than maybe Is50

(for real speeds)
I have already my 5.1 widesleef...B)