Techy Thursdays - A quick one from Simon Chu

"Managed a few days on the Mataura and had plenty of fish eating duns and willow grubs. One particular fish had me stumped for a couple of casts and I had a terrific fly on nose refusal. Rather than change fly I whipped on a foot of 5X Trouthunter (I was fishing 4X) and banged the fly straight back out. Had the eat immediately and it reinforces the importance of presentation yet again. Love it."