I know this is not the first time this has been ask but I can't find the answer right now. Flew for the first time today the whole flight was near vertical got it back on the ground with a broken prop only. I have it balanced at the 25% on the plans. where do I go from here?

You can go to the Sig online catalog and get the info under their instructions
and info section, here is what I found for you:
http://www.sigmfg.com/BuildManuals/images/SIGRC69SP.jpg

Be sure and check the incident on both the upper and lower wing. Also check the amount of up/down thrust.