--Do you think I should just go with the antenna as it is with the above swr readings or should I hook up an antenna tuner?
From reading your posts it is clear that your antenna had a mismatch or mistune that was giving a poor SWR reading.
This error however seems to disappear and become a good SWR reading when you bring it closer to ground.
When you bring a horizontal antenna close to ground its impedance will change.
This impedance change has altered your SWR meter reading.
This impedance change has counteracted the previous error that was shown on the meter.
It is likely that when the antenna is low that it will take all of the power sent to it , however at such a low height the ground effects will cause an extremely distorted radiation pattern and overall performance will be low.
Another tip ,, dont get fixated on SWR meter readings.
SWR meters do NOT
give any indication of antenna efficiency....
In fact SWR meters are very poor tools to use for antenna tuning.
The correct way to tune an antenna (dipole etc) is --
1. Check and correct the frequency of resonance with the aid of a DIP meter.
2. Check and correct the reactance with the aid of a Noise Bridge., the antenna will now be 'resonant'.
3. From the noise bridge impedance display you will now know the antennas impedance ,, change that to match the feedline (often 50ohms) with a matching device at the antenna.
With regards to using a tuner....don't use them on antennas that should be self resonant on the frequency of operation.
If you have a fault with the antenna tune or match , then fix it at the antenna., not in the shack.
Otherwise you are taking a loss (from the tuner) to correct a different problem.(another loss)
That is just loss on top of loss., and even though you will still get contacts it wont be as many as if you sort your problems out the right way.