as a highly competitive pumper, I venture to -20"Hg, and on occasion -25"Hg, I totally agree that this method works - just need to be extra careful regarding blistering
I no longer go with any special routine, I simply pump it up gradually, release the vacuum and redo as many times as it takes to start stuffing the tube, once I fully stuff to about the 6.0 inch mark in my 12.0x2.25 tube I pump to -20"Hg and hold it for 20 seconds depending on how it feels, release and do over as many times as want to, being watchful of blistering, I also wear a glans cap to minimize blisters - https://data.lpsg.com/photos/m/277/277007-1406858723-e0d67e805f3db36f693135d7834ed416.jpg
I no longer go with any special routine, I simply pump it up gradually, release the vacuum and redo as many times as it takes to start stuffing the tube, once I fully stuff to about the 6.0 inch mark in my 12.0x2.25 tube I pump to -20"Hg and hold it for 20 seconds depending on how it feels, release and do over as many times as want to, being watchful of blistering, I also wear a glans cap to minimize blisters - https://data.lpsg.com/photos/m/277/277007-1406858723-e0d67e805f3db36f693135d7834ed416.jpg
http://www.aliexpress.com/wholesale?catId=0&initiative_id=AS_20151105195640&SearchText=glans+sleeveWhere did you find this glan cup ?
I've been using a Pulsar electric pump but it's electronically limited to 11HG but the dynamic pumping options are great what equipment are you using to hit those high levels of pressure?I no longer go with any special routine, I simply pump it up gradually, release the vacuum and redo as many times as it takes to start stuffing the tube, once I fully stuff to about the 6.0 inch mark in my 12.0x2.25 tube I pump to -20"Hg and hold it for 20 seconds depending on how it feels, release and do over as many times as want to, being watchful of blistering, I also wear a glans cap to minimize blisters - https://data.lpsg.com/photos/m/277/277007-1406858723-e0d67e805f3db36f693135d7834ed416.jpg
I've been using a Pulsar electric pump but it's electronically limited to 11HG but the dynamic pumping options are great what equipment are you using to hit those high levels of pressure?
I use a cheapo pistol grip pump - brass fitted, with a gauge
this is just the style, not mine, https://data.lpsg.com/photos/m/287/287084-1414725329-e81ebf22adb481d821032bc91b89eb2f.jpg
https://data.lpsg.com/photos/l/282/282974-1411504443-10e3de6997af72b57430a729fab902ff.jpg
I also have another pump I think is called a mighty mite I picked up used, better quality
Awesome, I'll do some reading up on this. What are your tube measurements in the picture? The pressure your hitting is unheard of in most forums. How many minutes are holding onto + 20hg?