Hi izzy,
Sorry you are having problems finding a decent flavor. I also do not like menthol flavorings. You say you have the TW tobacco and the Patriot range at 36 mg. What flavor of Patriot do you have? The tobacco, though not my favorite does not taste of menthol.
Are you using the 901 atomizers that came with the Screwdriver kit?
If so, this may be where you are getting the bad menthol taste from. I just recently bought this same kit and experienced the same thing. It is caused by the primer liquid that is in these 901 atomizers. Get some 190 proof everclear and soak these atomizers in it for a day or so, then take them out and drain or blow the everclear out of the atomizers by mouth. Then place them in a shot glass filled with some your propylene glycol for an hour or so. After that allow them to drain or just blow the excess Propylene glycol out by mouth like you did with the everclear.
Now try some of your e-liquid in a freshly filled cart. Keep in mind, it will take some use to get them going. At first it won't have any taste or throat hit until your e-liquid wicks in and blends with the Propylene glycol you soaked them in.
Note: The soaking in PG after the everclear bath is optional. Once you have blown out by mouth, all the everclear, you can then just drip a drop or two of e-liquid directly in to the atomzer, pop on a freshly filled cart, let it sit standing up for about five minutes, then start using it. Once it has broken in, it will work fine, and your bad menthol taste should be gone.