Well regarding the warm up WHENEVER you do PE and AFTER PE always do hot wrap, hot shower for increasing circulation ,prevent injury and loosening the ligaments of the penis. Then do stretching for like 5 minutes maximum if doing girth workout separately to further loosen the ligs. Jelqing is not a warm up it is the main workout for girth . And it is beneficial if you do the normal jelqs before [words=http://www.mattersofsize.com/forum/penis-enlargement-forum/12539-slow-squash-jelq-nothing-give-me-better-expansion.html]
SSJ[/words]'s as it is an intense exercise . So the normal ones get you ready for the intense ones.
Also you will be needing alot of forearm strength to do [words=http://www.mattersofsize.com/forum/penis-enlargement-forum/12539-slow-squash-jelq-nothing-give-me-better-expansion.html]
SSJ[/words]'s and you wont be able to do many. So when you get tired you will be doing normal jelqs too to continue the workout without a gap.