Hey Ya'll

I am currently in the market to make my dream bike, and i am looking at a few different frames. Currently I have my eyes on a Cervelo Soloist Carbon or BMC Pro Machine. The big question I have is if any of you out there ride either of these frames and could give me some input on sizing. I am a pretty big guy, just stopped racing crew to pursue cycling. I am 6'2"-3" and currently around 200lbs but will be dropping down to 185-190lb over the next few months.

I have gone to lbs and they have told me I needed atleast a 60cm frame however I know a lot of the larger pro's ride 58cm frames. Any input would be great thanks