While a mini spool and a regular spool both do the same thing. A mini spool relies on a stock carrier for strength and a spool is one piece of machined steel. When you lock two axles together the tires can have two different paths of force and therefore look for the weak link.(stock carrier) Don't use a mini spool.
That Moroso unit is a good piece. If you plan on using stock spline axles.
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testing FAST combo misc runs
Best 60' 1.61
Best 330' 4.735
Best 1/4 12.57
