Installed new pistol grip

I like the looks and the idea for forward shifting, but down shifting (street driving) seems like it might be a little more tricky? No T-handle to rest your palm on to pull up the trigger??...
True, it will be a little different now but I ran through the gears a few times just sitting in the garage and it wasn’t too bad. I wrapped my thumb around the main stick while pulling up on the trigger and pushing forward into 1st.
Somewhere in the abyss there is a thread where someone modified the trigger on his shifter to work like a lever. I’m searching but haven’t found it yet. That could be a game changer.