investigate small variations in MOE fit

* investigate small variations in MOE fit
* potentially OS & CPU vs. GPU specific
  * near absolute simply a floating point different
  * very common occurrence 
* See:
   * seem comments in internal `pymedm!-60`
   * `internal!-76`


```
" 'moe_fit_rate': np.float64(0.9993192648059904)}"
```

vs.

```
`"MOE Fit Rate: 0.9996"
```