I had an i3. Installed a 6-50 Clipper Creek Charger. When I use the adapter Tesla supplied with my X, I’m getting about 21 MPH of charging with the CC. It will cost me about $300 to have an electrician rewire to a 14-50 so I can use the Tesla travel charger. Cost/Benefit--Is it worth the $300 to make the change. What charging rate could I expect with the 14-50 and the supplied T travel charger?