My skin type heals incredibly well. I did TCA cross about 10 days after a 30% tca peel- no problems.
All of my scabbing fell off within a week after.
The deeper ice pick scars are rather red, but much much shallower. Without makeup the redness makes them more obvious, but with make up on the amount they have shallowed has increased dramatically, I would say at leastt 50%.
Other scars became wider and shallower, but I have no doubt this will even out over time if I keep up with decent exfoliation.
And as you said, some scars have a ring around them that seems a bit raise, I am expecting this to even out with more peels, perhaps even spot treatment of tca 30% every few weeks.
In my case combination treatment is not a problem because I heal well, I would base it on how healed you think your skin is.