Removing yoke from control arm.
After replacing front Strut Assemblies on my 2002 Trailblazer (@179,000 miles) I strongly agree with the group (the roadie, markarock, 6stringbass) this was a very frustrating & loosing experience utilizing pullers (2-jaw & 3-jaw types). Not enough leverage. As suggested in the Forum I then went the pickle fork route. Via AutoZone's loaner tool program, I obtained a Pitman Arm fork & a Ball Joint fork. The difference being only the wedge thickness / taper: Ball Joint fork is thinner. I used the Ball Joint fork first (and with a hand sledge hammer: 3-pound) to make a gap big enough to get the Pitman Arm fork in, and then finished separating the yoke-arm connection.
I think using this procedure could result in replacing each strut assembly in about 2 to 2-1/2 hours each. I think this tidbit might save headaches to someone.
Note I replaced the complete strut assembly (purchased from RockAuto) because I wanted new upper & lower mounts, and was economical and less work.
Much thanks for your help to ALL that have provided valuable contributions.