Topband: Inverted L or 1/4 wave sloper?

[Jim Miller WB5OXQ in Waco]

I have a 50' tower with a tribander on top with which to support an inverted L or a 1/4 wave sloper.  The beam is about 53' so the high end at 50' and the low end anywhere from 30' to a lowest of 6'  The high end of the wire would face about 350 degrees and the low end about 180 degrees on the compass.  I have only 3 30' radials and due to the tower being close to the side of my lot and next to the house I cannot easily put in any more.  I have a tuner that can take coax or open wire.  Opinions please!
WB5OXQ in Waco, TX.