Is it awkward to meet with all prospective contractors at once?

[Andrew Robbins]

I just bought my first flip.  I don't have a go-to contractor yet because until now I haven't had anything for a contractor to bid on.  I want to get 3 or 4 bids.  Soon, I'll have a detailed scope of work ready so that the contractors will know exactly what they are bidding on.  My question is: Is it unprofessional/awkward to meet with all contractors at the same time, so that everyone is on the same page OR would this be seen as playing head games and pitting one guy against another?  Just for more context: I'm still working a full time job and it's not easy for me to get away during the day to meet with a contractor, so I don't want to stretch the process out to much because obviously time is money.