Response # 1
a conventional gear aircraft, Ground clearance is at a minimum when the tail is off the ground. Hence, tail wheel size is not a factor. As long as the prop clearance meets the requirements of your local aviation authority, it’s up to you to decide what is comfortable.
Response # 2 You should review all postings. For example :
On 10/16/25 Daleandee posted Air Hawk 500-5 6 Ply Tire (no 4 ply in stock) What a difference! - #10 by daleandee
And this from Flyboys Accessories: “ The upgraded tailwheel assembly will lift the tail of the airplane a few inches (the actual change will vary depending on which tailwheel setup you choose to use). For most pilots, this won’t be any issue, but if you like to do three-point landings you may consider what a few extra inches of tailwheel height does to your AOA on landing. You may consider upgrading to larger-diameter main wheels to balance things out. …”