I was a groomer for 10 years - so here is what you do:
Pick Jasper up with your hands placed under his front legs - your arms straight out in front of you. Make certain he is NOT eye level with you. Hold him that way until he stops fussing and wriggling and becomes limp like a rag doll. The reason for this is to show who is dominant. It is not mean and it will not hurt Jasper. Do this everyday until he quits struggling with you.
Another thing to do is teach him to stay.