Will a 3T6 module fit in a D cell Maglite without milling out the inside of the Maglite head? I see the 3T6 and 3L2 drop ins on Kadiomain and Aliexpress, and by the dimensions it looks to work unless milling needs to be done, if so it would be a waste of time. But I was thinking of modding the switch front area for the positive and negative springs to contact correctly, shorten the battery spring, then use 2 26650 batteries in my 2 Cell d Maglite.