Honestly, dunno about lvl 5. All I’ve experienced is 3 and 4. The race director said that there was no boost available. They have a button that gives you speed 4 for a few seconds or something when in speed 3 general sessions.
I have to say this was surprisingly good. The grunt of the kart, how it puts down the power was really well suited to the scale of the place and how the course flows. These karts have chainsaw low end and a quick midrange, topping out even quicker, and linear. You’ll note that there are no straights and it keeps you from every really being able to run a “limiter” for long.The circuit swoops, bobs, and shimmies a lot, and you have the power to get into trouble, if you are not accustomed to torque. A fella in the same race as me was saying on reddit how he found it very challenging to adapt that night to speed 4, for example:
I’m a new karter in a new racing league where the speed of everyone’s kart is unlocked to the maximum speed for the first time, so everyone is having trouble re adjusting. You could originally do the entire track without lifting your foot off the throttle, but not any more. It is VERY easy to slide in a lot of spots which causes me to lose momentum.
I have only been here once before on track 2 and in a general session at speed 3. My take was, “Cool, but I won’t be back. The karts underdrive the course. Seeya.”. However, speed 4 or league speed or whatever it is, is powered correctly to the scale of the track. It could use another 10-20%, imho, but top splits only or something, because things would get interesting.