Hi there, I did a lot research on big 7 series, the big 9s are similar. From what you said, I suggest you go for 300. The frame and fork of these two model are exactly the same, the 300 has some better components. BTW I think the paint of 300 is more "merida style". But the key point is, you personally prefer 300, from what I read. I'm sure you don't want to feel regret after having 100. So go for 300
