I've kinda gotten away from keeping up with rpm's. I just go by sound.

I have three 56's but I also have two 50's and 4 OS 52's. I've been using one of the 50's and one of the OS 52's for a couple years.

I tend to fly the same plane until I wear it out. I've been flying your Ultra Stick 40 since you gave it to me 3 or 4 years ago.

Went flying all day yesterday but it was the Slow Poke with a OS 52 and the the Ultra Stick with a Saito 50.

I havn't run a 56 is two years.

The last time I measured a 56 was in 2001 or 2002 and mine was pretty consistent about being slightly above 10,000 with a APC 12-6

I remember the Magnum 61's being pretty close to the same power as a Saito 56. The OS 52 was down about 300 rpm.

I did finally use a MAS grey 12-6. I think it's going to stay on the plane?