Not alot of difference in flying but it does give better performance in grass.
I put bigger wheels on alot of my planes because we fly off a grass field.
Trike gear try to increase all wheels by the same amount.
Tail dragger, try to raise the tail by at least half of what you raise the mains.
If you have wheel pants they prorbably wont fit with bigger wheels but wheel pants aren't good in grass anyway.
Make sure to check the balance after making any changes.