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This is just me, but I remove the syn immediately, put in a 5w30 good quality conventional (Valvoline or similar), run it somewhat easy for maybe the first 50-100 mile varying RPMs constantly, then beat the heck out of it for the next 500 miles, drain and put a good syn it and your set. Best ring seating possible and if something breaks it was a defective part and not from your driving.
For those that have not done this you may still be able to seat the rings better, but as the quotes in SSE's post the window to properly seat rings is short. Bearings and journals need NO break in time....they are good or there not period.
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