I just got a G90 ST for Christmas and can say for sure it turns a 13X6 APC at 12,500+ even with less than 1/2 gallon of fuel through it. I am just wondering if anyone has been able to back up the factory specs of 12,500 to 12,800 on a BME conversion. I would really like to replace my G26 with this if it runs as advertised. My G26 is on a GP Spacewalker with an 89 inch wing. I really like the gassers because of the low fuel consumption and little to no cleanup but the G26 is a bit heavy for the Spacewalker. Please post numbers if you have them.