i will say go for Slot in type since u ard have the Lee foundation kit, trust me..
It made ur work flow so much easier...
imagine, u hv to take bare meter reading, screw on B+W den add adapter, den foundation kit den slot in GND.. wah siaz.. sibeh leh zek..
In that matter of seconds or even 1 min, lighting wil have change (though not drastically)
If all slot in, swee swee just set up eveything, and slot in and out as and when required.
Ta da.. make sense?????