I actually have a little under 2 months, sorry if I put weeks in there, but I think you are right that it's worrisome to try and switch anything out without certainty that I will be able to get used to it before the race. The ones I'm looking at that use the mountain bike style cleats with the bigger base are also one sided so I will have to deal with flipping them over if they're not in the right position.

I guess the bottom line is that I could get something that I will plan on using after the race is over and if I get comfortable enough with it by race time I'll use it, and if not switch is out.

So, Look sounds like the way to go from what you're recommending?