As you can see, the forums are having severe technical difficulties, hence, I have created a backup forum for discussion, while I try to fix/migrate the data.
Please click here to view the backup forum
oh but you don't have to use grass types versus the flying gymleader when you challenging him. If you challenge him, you can take whatever pokemon you like, if it follows his rules. So you can bring with you rock types, or ice types, etc.
But aapje (member) has challenged you in your grass gym :P
I know she is assleep right now, but ehm you could battle tomorrow I think so, being morning for you and noon/evening for her or so?