Deep tissue massage for mobility issues?

Deep tissue definitely helps. However, you have to get somebody that knows how to fix the problem. I have only had one deep tissue person know what they were doing and helped. I actually went in for a sports massage and they said I would benefit more from a deep tissue (less money also so I knew they weren't selling anything). My arm pain was due to tight traps and pecs. They also recognized that my back problems were from all over my legs and needed attention but said they needed the full 1.5 hours on my upper body to fix the shoulder and arms.

Another thing that has helped tremendously is using the jigsaw massager on my chest and legs.

My PT cousin told me to get some dry point needling done for my trigger points to help relax some of the muscles.

Good luck.

I've had my fair share of issues, and really fixing them requires approaching from all angles: mobility, stability, flexibility, etc.

Specific to massage, I can't recommend it enough. I suggest finding someone you really like and visiting them monthly (at minimum).

I've seen the same masseuse at least once a month for the last 8 years; and the value isn't just in the treatment - it's in the feedback. She can identify imbalances, let me know which limb is tighter, etc - and do so better than I can myself.

Take some time and find a good one; I lucked out and found one who is certified in a bunch of modalities, is a former body-builder, who has a powerlifter husband.