My original type in the 350 required an SIC, a year later and another checkride I had the restriction removed. I had the choice of doing a single pilot type or with a copilot, I felt the type ride would be easier, the first time, with a copilot. The company I am at now, we all are single pilot typed, but always fly with two pilots. I don't think our time is legally loggable in our case. I don't think any of us are MEI's, being part 91, no ops specs to require it.