New guy needs help with trailer choice

Hey everyone, I've read a bunch and still have more to take but was hoping for some help with a few questions I got, and everyone here seems very cool.

My wife and I got into car hauling after I retired from the Marines in 2014, but had to step away for personal reasons a few months ago and sold our truck. We missed being O/O's, so we decided to do the Schneider lease thing. Big mistake, their rates suck and we miss running specialized freight.

So we're taking our truck to Landstar, and had a few questions.

- trying to decide between a step deck or rgn double drop, what can we make more consistent money with?

- is there that much of a difference in income of freight between running 22.5 or 17.5 tires? We've ran 17.5, 19.5, and 22.5 and know the pita the smaller tires can bring with them.

- how's the freight in the winter time- still good or do some swap to dry van for the season?

We look forward to gaining some knowledge from y'all

 

Not necessarily a Landstar question, be but we weren't sure how to approach it. I'm hoping some here have experience with Landstar that can chime in, and others with what they have been successful running. We're leaning toward a 53' drop deck with axle slide so I can run all 48, but at the same time, wonder about missing out on stuff normally run on a rgn. But at the same time we don't wanna get in over our heads bring new to this type of freight.