by 116-1126649562 » Tue Sep 13, 2005 10:59 pm 
			
			I got a brand new set of Giovanni wood bongos that won't tune evenly at the tension rods on the macho side.  This happens with nautral skin or synthetic heads when I tune the macho head to high or medium tension.  I removed the head and found a couple of small splinters on the bearing edge which I lightly sanded away with some 320 sandpaper, then touched up the finish there with wax from a hard candle.  This helped improve the pitch difference around the head from about a whole step to 1/2 step.  Also, I changed out the heads to Remo NuSkyn (which I use on congas as they help with the big temperature and humidity swings here in the midwest). Well, something is still binding somewhere because no matter if I try to tune it up on the flat side, the harmonic difference is still about 1/2 step. Two rods are always flatter than the other two.  The head will not ping out to the same pitch.  I have checked the amount of tension rod travel on each lug to make sure the head is not being torqued in any way. Basically what I end up with is different pitches from the right and left hands when I play and a wierd harmonic overtone.   A non-player friend suggested that I use talcum (baby) powder on the bearing edges to reduce binding.  I will try this.  Any experience with this situation??  Thanks. ???