Yea, it does seem rather odd. I dont like how difficult it is to add water to the Octagon 20 channels, but I haven't seen any that are really easy. And then there are those d*%$ rails that we love so much (but others have no issue with them!) Can't beat the temp stability, but there are things that they could have done differently, to provide more range for varying conditions. So I guess that's where we have to adapt on our own.