I may be too new to vaping to help. But, I just started using DTL style with a Crown tank. I started off with the same high VG juice I was using for MTL. I found that it was giving me a heavy feeling in my chest. I switched to 50/50 for the Crown tank and it is much better.
Plus adjusting the wattage higher worked better for me. At lower wattage I was getting a raw throat but upping the wattage made that go away and it was much more enjoyable. I started at 30 watts and didn't like it. I ended up in the 60-70 watt range with my RX200S and the Crown tank using the .5 Ohm coil.
Don't know if that will help.
Chris