Hi SnowWhyte!
I have two SCS's implanted, cervical and thoracic. Both batteries were placed in the hip/buttock area. The thoracic battery really bothered me where it was placed, so when I had my revision surgery on that SCS they moved the battery too. It was moved to the front/side, kinda near my ribcage. I really wanted the other one moved too but insurance would not cover it.
So, I have one in the back and one in the front. Since the skin and tissue in the front is looser than in the back, that one turns and moves a little too much. It is sometimes uncomfortable to lay on that side. But, it does feel better there than where it was originally placed.
Sorry that probably doesn't help you too much
Oh, I will add that it is easier charging the one in that back then the one in the front side....makes a better connection in the back since it stays flat.
I wish you luck on your decision and on your trial!
Nanc