IMO, I don't think it's a bad idea, but I personally wouldn't do it. You said it was an off day, so I would just leave it at that. Come back next week with your shit together and smash some PR's!!! If your looking to try conventional then try after the meet. But, if you feel like you can make it work for this meet then give it a shot. You still have enough time to figure it out.
I see where your coming from Brian. Don't know what I'm going to do yet. I've got official pulls over 500 both styles so I think its going to come down to what style I feel will give me the biggest pull that day. One thing is for sure, I will come back next week and get my shit together like you said. Haven't had a bad day in a long time so I was due. Lol.