Yeah it really interferes especially when braking into a hairpin and dropping into first.
With my 300zx I can use that gear drop and trail braking to kind of hop the car into a slight over-steer, keeping small amount of power on and pointing through the gate perfectly for the best acceleration out.
In my 1M, it kicks me back and I have to wait for the front end to come around before I can get my shot. Basically it makes me go wider. I can compensate by entering even slower, but you lose time that way.