Recently there has been x9/10s logged as failed in service.i dont know if this is the branded deckers or replacements.i have noticed over couple weeks branded x9/10s on other local services,which i find strange as there is only about 7 of them.surely they should all be working the teeside route as much as possible,not wandering around on slow local services. Does this have any impact on the engines of these buses, as theywill be used on slow stop start routes, then back to high speeds.drivers used to saythis was the reason buses of the past were breaking down because of this type of use,just wondering if there is any truth in this.