The new Saddleman is an interesting design and they make a good product as does Sargent and usually Corbin.
I think its important to remember though its a one size fits all seat which is a good thing as long as it happens to fit you. I don't think it should be rightly compared to a full custom seat such as the Russell which is tailored to the specific purchaser.
Indeed you could spend money having your Russell tailored in terms of shipping but its important to remember that with one like the Saddleman one reason you don't have to worry about that is that there is no tailoring to it, you have what you have.
In my mind neither is a bad choice they are simply two ways of going about it. I didn't do either, I had mine redone by Rick Mayer which cost similar to the Saddleman but is still made for me. I don't think it is quite the comfort level of the Russell but still quite good and meets my needs.
'14 HD FLHR
'01 HD FXD
'09 HD XR1200
'79 BMW R100