For Age between 16-20

if i take my sled with me and walk 200 yds (two football fields away) and the sled weighs 80 lbs. will this negatively affect my sprint workout?

so I’m basically carrying 80lbs 200 yards (183m) and then i do a bunch of runs.

I'm thinking of getting:

Streakfly 2

Or zoom waffle 7

I'm a bit worried about the durability of the streakflys

I'm used to sprinting barefoot on grass and turf.

But I'm still worried that the waffles might be too flimsy for asphalt

Has anyone used the waffles on the road?

Are they basically just spikes with rubber soles?

Any other suggestions appreciated

I don't want anything with tons of foam or heel lift like most shoes seem to have now.

Assuming I sprint 3 days a week, how often should I do recovery days, and what should a recovery day include. I have access to a foam roller, a massage gun, a swimming pool, and resistance bands.
Thanks!