Yelliw bics are very rough for me. Red bic astors are really smooth, but aren't really sharp and short lasting.
Not bad for me, just try them. If it feels to uncomfortable take it out save for later, try something else. Enjoy your shave!
They're my personal favorites, comparable in my experience - and with my technique and gear - to a Bolzano, but both cheaper and longer-lasting.
I haven't tried Bic blades, but I do have some on order. I'm looking forward to trying them out. The only blades I'm 'scared" to try are ones that seem to consistently get a bad rep. That being said I've been here long enough to know that works for others may or may not work for me, it all YMMV. Unless you are completely happy with your current equipment, there should be very little reason not to try something new.