While researching the phasers I came across this memo from Herb Solow dated 8/04/66 that is talking about the cost of the phasers. Interestingly, in the middle paragraph he mentions that they had to have Wah Chang "
fix up one of these pistols so that it would be more interesting in detail and more adequate for close up insert work."
This memo seems to confirm that the conversions were not done at the same time and is strong evidence that the first one converted was the Conscience / Lenore / Riley phaser since it was the first filmed. It seemingly confirms why the Conscience / Lenore / Riley was a little different from the others because it was the first one as we suspected. Furthermore, the first converted phaser filmed was indeed the Conscience / Lenore / Riley on 8/09/66 and was the only hero filmed until 8/17/66 when two additional converted hero P2's were filmed. It appears Wah was working on converting the other three in the interim period.
Most likely after they got the first phaser back from Wah, they decided to convert the rest of them since the look was much better on film than the B&W's
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