Would you consider a single insertion HDR scheme for T&O brachytherapy (BID fractionation over 3 days)?

One can use the Vienna scheme where they do 7 Gy x2 with each insertion (2 insertion). I have done 5.5 to 6 Gy x5 with some patients with logisticical challenges.

An important thing is planning should be 3D image guided, each fraction should be planned to account for change in applicator positioning...