Just curious as to what people with floats installed typically see for air speed on their kitfox?

Obviously it will vary based on model and engine. But I am looking at building a SS7 with a 912is and doing amphib full lotus floats.

I went up in a Cessna 210 this weekend that had floats and it had about the same airspeed as a 172 which I found amazing! Very big, heavy floats on a plane like that obviously. Full lotus floats are light by comparison, but the frontal area and drag remain the same.

Thanks in advance guys!