It can with a 15 year old on it. Just won't be breaking any speed records. Nice and light for someone who is still learing to move around on the sled in deeper snow.
We have two (Venom Mountains) Clutching way off at higher elevation. Rpm too low . And engagement to low. U are correct shocks are absolute garbage. With tweaks I do think they will be fun. Just adds up $ pretty quickI rented it to see what it was all about. Doing more research on them it looks like they come clutched for sea level. As for the shocks on the back you can put one foot on the running board and bottom it out. we couldnt find any kind of adjustment on it. Your evo is probably the better sled i think. Once your kids get bigger Polaris has a kit to make it full size sled with full power. The dealer sells polaris to and told me his one customer has an evo and rented the venom did some comparing and drag racing said the evo was faster and more responsive. The price of the evo is better to.