Silent Partner: rap set up using ATC

Silent Partner rap set up
Hi. I'm not sure if this has been suggested before. I found the rap method suggested in the SP manual a bit difficult. The set up in the picture seems to work well in the living room. Originally (on the cliff) I tried a munter on a biner where the ATC now is - this did not work due to rope twist. But I envisage using the ATC does away with rope twist (characteristic of munters), would take less than a minute to set up on the cliff, would allow complete speed control, and would not burn a hole in your backside or break hand.

I think the ATC could be set up about 1-2 feet above the SP. Where my thumb is on the quickdrawer, connect this to your belay loop (you could use a short prussik and biner instead). My hand is on the break strand in the photo.

Thoughts?

Regards,
Chris (Brisbane, Australia)

out of curiosity, why not just rap of the atc? i don't know the nature of your rappel but it seems like the silent partner just complicates the situation

I was trying to find an easier way to rap down and do laps on single pitch climbs. Just to save removing and reconnecting the SP each time. It's pretty quick this way. But you're right...it would not take a lot more time to remove the SP, set up the ATC, rap down, remove ATC and then reset up the SP for the next lap.