we are members of sema and we get our math straight from the big three but when we transfer all the files our math comes across as a complete mess. How do I fix this? Sema is telling me we should upgrade to better software? It is per mated together but when I open it I loose parts and mates. And is Solidworks capable to handle files this size? We need to upgrade this year and I am not so sure we should go with solidworks or another software.