Greetings and thanks in advance.

Longboarder, surfed well in the day but an 8 year hiatus kept me from surfing except the yearly surf trip (job landed me on the gulf coast).
I'm pushing 50 years, 6'3 and 210 pounds. We're now on the central Fl coast and I'm trying to keep up with my teenagers. Stoked that they still want me to surf with them.

I did my research and was about to pull thge trigger on the sweet potato when I noticed a baked potato sitting there. Liking the improvements, but I wish it came a bit bigger. I don't shred but have loads of experience. The age and low back problems are at least under control, but set some limits. I've been surfing for 40 years, but it has been 15 years since I've been on a shortboard, 20 years since it was my choice.

Goal is simply to catch lots of waves. I'm coming of a 9'6 antique and I'm thinking 604 sweet if no one convinces me otherwise.

Opinions?