Here's exactly what I did to reshape it:
1) I rubbed Leather CPR into the bag with my hands until it sunk in. Gentle rubbing is enough! And I'd test an inconspicuous corner first. A vintage bag I used this on would lose dye when I rubbed moisturizer on it, but Loewe's leather was extremely colorfast! No dye transfer at all, which I think speaks to the quality of their processes. I'd also be careful not to get it on the lining (I got a teeny bit on the suede inside of mine and it stained

)
2) Let it soak in for another 30 minutes to an hour, and then rub in a second coat using the same process.
3) With Leather CPR, I follow the directions on their label and apply a final coat. The trick is instead of rubbing it in/letting it sink in, once you've covered all the surfaces in light layer of conditioner, you wipe it all off right away using a soft white t-shirt. I've noticed this prevents the leather from feeling sticky or overly saturated with conditioner.
4) Then I stuffed it over night, but be careful with this step. You don't want to overstuff it so that the leather will stretch out, but you do want it to be full enough so that it returns to its structured shape and will stand on its own. I used soft materials like tissue paper and old t-shirts to put inside it until I felt it was full enough. It may be beneficial to cut out soft cardboard like from a cereal box in the exact shape of the panels of your bag, so you know that no part is being overstuffed or stretched out.
4) The next day, I left it stuffed and then I conditioned the bag twice again while stuffed, using the same process as above (and then did the third and final wipe-off layer).
5) I let that sit one more time over night, and voila! The conditioner and stuffing has returned most of the structure and she could stand on her own again!
How I got the corners to look new:
Honestly I was pretty surprised by this. I just used a very rich conditioner. In fact, this conditioner (Blackrock) is really too intense for most needs. It would make most bags feel sticky, but it's absolutely perfect for blending out scuff marks. All I did was apply a tiny amount to each corner and rub it in with my finger. I used such a small amount I didn't even have to wipe away excess; I just rubbed it in. I didn't need another layer either, except on one corner which was especially bad. I'm not sure if you can see, but in my original pic, you can see that the corner in the second row still has a small scratch because the scuff was too deep. The other three look new though!
Hope this helps anyone who's interested! I've definitely learned so much from TPFers especially on the
Coach rehab thread, so I'm just trying to pay it forward
