Trying to work more on the high end of the harp recently. Blow bends are still pretty erratic. Biggest problem seems to be responsiveness on the high end - difficulty in playing faster runs on holes 8-10 - they seem to either choke or sound late (9 draw in particular). Question: Is there any special gapping advice for the higher end to improve matters. I played around with the reed gaps on a C SP20 (trying to improve bendability) and seemed to make matters worse. Similar difficulties appear on many brands and keys G, Ab, A, Bb, C on SP20, MB, Huang SP, LO's....actually the Huang's seemed to play easiest. I know that embrochure changes are important on the high end, but with much experimentation over several days I don't seem to be making any progress. Just curious if there was any general advice on gapping the higher reeds vs. what we normally do on the lower ones.