[TenTec] SLIGHTLY OT

[Art Trampler]

It's on-topic, as I am using a 238B...
 
 
New antenna, 140' sloping dipole...apex about 50 to 55 feet, ends about 30 feet, so not quite an inverted vee,
 
Feedline: 600 ohm (or thereabouts) 14 gauge stranded, insulated wire using 73CNC spreaders, Guesstimated length: 110 feet. Feedline and antenna are continuous pieces.
 
Tuner: 238B, followed by 10 feet of LMR600 to a 1:1 current balun from Balun Designs (to get out of the shack).
 
On 160 meters, I wound up in Hi-Z "5" position to get a 1.8:1 match. Am I looking at Hi-Z because the antenna length is about 1/4 wave? If so, would it help so add 20 feet to each end, even if it went at nearly a right angle to the antenna? Or is this really unimportant/not an issue as long as I get a match?
 
Also, what recommendations do other owners have for additional capacitance if necessary? I have not replaced the internal capacitors with the Russian doorknobs but might at some point.
 
Interested in your thoughts. If the Pegasus S-Meter is at all accurate, I was hearing Russians a full S-unit better on 20 meters last night with this antenna than with my AV640 vertical. Japan is off the end, so the vertical is better in that direction.
 
73,
Art