I have to say that I am delighted with the performance of the Trigger Trap Flash adapter.
I took exactly four shots and these are the results. Faultless performance of the trigger meant that each shot was on the money.
I used a nerf gun to pop the balloons (needle embedded in the dart)
2 x SB900 flash guns @ 1/128 power triggered using the Triggertrap Mobile App, Flash adapter and Pocket Wizard triggers.