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Here is the problem with a wire going straight into the tuner:

When you put a wire straight into the tuner and run it out of your shack to go outside, a portion of that wire if currently inside your home (shack).

1. That portion of the wire will actually radiate inside your shack and might create all sort of RFI all around your equipment.
2. A substantial amount of RF output will be lost and you'll lose performance. The first 30% of the wire coming out of your tuner has the highest amount of current which is the portion of the wire that radiate the most. The rest of the wire is high in voltage which radiate the less.
3. The SWR might fluctuate and hard to stabilize because you won't have anything to equalize the impedance of the wire coming out the tuner.
4. It will probably going to be hard to actually configure the antenna to the desired elevation and angles to achieve desired results.

The reason why I was suggesting the CHA EMCOMM II is that the tuner will mostly see 50 ohms throughout the entire HF band which will increase the radiating power by reducing the stress put on your antenna tuner.

The SWR that you see BEFORE tuning is more important than the SWR that you see after tuning because a tuner only make your radio happy (close to 50 ohms). The closer is your initial SWR to 1.1:1 the higher will be your radiating power AFTER tuning. A wire installed directly into your antenna tuner will show VERY high SWR BEFORE tuning thus reducing the amount of radiating power AFTER tuning.

This is exactly why that this kind of antenna products (CHA EMCOMM II and all the other Chameleon Antenna products) exist!

Carl