Personally I have found that the Pro may have a few better parts on it like the shock and bearings and turnbuckles but have had a few more breakages with the Pro than the Rat version and have since swapped a lot more Rat parts on my Pro, better to have a little flex than a broken part, I have been running the Rat since last summer and the car just seems to get better, may be just me getting to grips with the car a lot more, even getting lap times closer to the top guys at our club, quite a few F2 drivers to race against in the club, I am sure we will see a few more in the A final at the nationals soon.
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