NEVER have done a RR Reverse but if it a RR and a Reverse Action combined, you're making IF-BETS and not parlays, so you would have 6 boxes, I would THINK.
I guess I should have said it would yield three different REVERSES:
a,b
a,c
b,c
The way I worded it earlier it made it seem like I thought there were only 3 COMBINATIONS. With the usual rules of reverses applying. In looking at Wil's explanation, 3 REVERSES with a total of 6 COMBINATIONS would be the case here. Thanks guys.