I hear you Patto.. But OS have had the bearing problem too.. You might have copped one with good bearings... now if it had bad bearings then the engine would still be a good one , just with bad bearings.. the problem is the supplier of the bearings.. Unfortunately when you are buying bearings in bulk and the manufacturer of the bearings dont tell you they changed the manufacturer of the bearing then you are stuck with thousands of motors with crap bearings.. So thats whats in circulation at the moment.. OS were the greatest sufferer of this as the Japanse company that made their bearings subbed their work out to a chinese company which made crap bearings.. OS had problems for about a year or so ... Now they have changed bearing supplier and they are going much better..

So my long winded point was in the 6 Force motors i have not one of them had a problem.. In fact i used the bearings out of them in some of my race engines as they are great bearings.. Like i said its luck of the draw as to what you get with bearings.. the only engine manufacturer that uses really expensive bearings consistantly is Saito .. that i know of that is..