does anyone take there spark screen out of the exhaust? if so why? also i read on here about modifying it somehow to make it run better? faster? any insight would be great got some logs to buck up and was just wondering about my saw and if i can make it perform better without the big price tag of the pro saws. i will get a pro saw one day and keep the 290 for limbing or small wood but right now it works just fine.