I wasn't using net pay, all figures are gross income and for the first two years not one. I listed how I came up with them if you think my assumptions are wrong then tell me but unless you can say specifically where, it's not productive.
Also I do not claim that pay is the only thing to consider when choosing where to apply but it's also not something that should not be ignored so I put some numbers up to consider.
Contract, stability, growth, reputation, and a dozen other things are very important and already discussed elsewhere.
Under your assumptions, LXJT = $64,578. By the way, there is an old thread here that compared actual contract language. I'll look for it when I get a chance.