Welcome! Beautiful bag...I would continue conditioning, letting it rest 12 hrs or so between applications. How old is this bag? Unfortunately with "pre-loved" bags, we have no way of knowing what their previous owner did - or did not do - to them as far as upkeep. We may not know where they lived either...or how they were stored. I'd bet lots of ladies don't even begin to know what they can - and should - do to take care of a leather bag. I sure didn't until I found tpf
I don't know that you can "over condition"...I would continue, especially the piping.
I also use Blackrocks as a final treatment, usually 2 coats with 12 hrs. at least in between...AFTER I'm satisfied I've conditioned enough. About a year ago I rehabbed an 80's Courier Pouch that got 4 intense rounds of Leather CPR before Blackrocks.
I agree...with the conditioner. To me, Blackrocks "deepens" rather than darkens color...makes the leather glow!
Amen!