225.. what rims though?

[ilikerice]

ok, i have sold my crx shell and now new autocross season starts in a couple weeks.. i wanna go with the new azenis 615K and try them out this year so i can stay in ST class. my plan is to get new rims, but i am still unsure on which size i want.. i was going to go with my red rota gt3 with 225/50/15.. or buy some 16", 215/45/16... OR get some 17" and use the extra height to help with speed bumps with 225/40/17

now, i cant get the azenis in 225 on 15" wheels unfortunatly.. i will probably go with the Ventus R-S3.... but if i really wanted to stick with azenis, they only come 205/50/15s. and thats what is on my yaris now.. they are just the originals and are about 4-5 years old and hard as rocks now..

so.. im gonna make my decision monday. opinions more then welcome.. thanks guys..