first try CC 2.0 l 914 heads 

i would do it tjhe other way around. Fill it perfectly and then draw out with the syringe. less spilling

Na m8 ,,, tilt ya head in a jig @ 1 or 2 percent , and go gentle until the last air bubble has gone , do that , and your accurate

U lost a few that leaked out via your air hole before u let the air pocket came out