Depends on the numbers you didn't mention as to how much weight your F150 can carry. We know the truck can pull that 9500 lbs but pin weights vary considerable from 15% to 25% of the trailers gross weight.
For some reason Ford give their F150 trucks 17 different GVWRs from 6450 up to 8200 lbs every 50 lbs in some cases. Ford also has 5 rear axle weight packages running from 3500 up to 4800 RAWR.
You need to weigh the trucks front and rear axles separately as any trucker that way you know exactly how much weight the truck will carry.
Air bags work great for helping the trucks ability to carry more weight. However air bags can/may cause other issues like rear suspension sway and uneven suspension compression and rebound issues. You won't know till the truck is loaded and a couple of trips made. Most folks have no issues.
Need some numbers.