Topband: placement oc coil

[w5jmw at towerfarm.net]

Hello to all.I am planning a 60 foot vertical.I am wanting to either 
place a coil on the vertical for topband.The vertical is a hy-tower.I 
have base loaded(not very effective) I have toploaded with a single 
wire(not enough room).I now have plenty of room.So my question.
Base load with many radials,60+
top load at the highest with wires?
top load with coil? and if this is best where should the coil be placed.

thanks to all es 73 john w5jmw