17.5 tires step deck 2018 please help (ls driver) all welcome

i have seen older post on the subject but nothing up to date and was wondering has anything changed as far as the life span of 17.5 tires as well as the long list of negatives i have read about is it a good investment hauling for landstar? looking to buy a step this year and am trying to decide between a 53ft mac or 53ft doonan speced brand new

 

thanks ....how long have u been running with the double coins.im kinda leaning towards the 22.5s just want to make sure i wont regret it

 

i cant find any info.on 19.5s on any threads really so i assumed no one uses them.

 

oh thats a good bit if u havent had any issuses then why still opt for.22.5s?

 

gotcha makes since