Im so glad I listened to many guys on the forums to get larger tires.
I ended up with 8.00 x 6 on the mains and a 6.00 x 6 on the nose (the 7.00 x 6 didnt fit, was too wide)
This is my second landing.
Speed penalty? 1 kt maybe 2kts , but no more and I dont care,I already feel the difference when landing on this wet grass strip , and looks much better too.

Well, now that you know how good a bigger tire is, I predict 8.50s are in your future.

Most likely as soon as the 8.00s wear out

If it hasn't been said lately, that is a good looking airplane!