I had no time for a shipped GPR after misplacing the one I use maybe once in every 4 yrs. I decided to take a different approach and find a workable solution at Home Depot. A wood screw had a good likeness in size and demension to the glow plug I had brought in to the store with me , the threads had to be a tad bigger than the glow tip .(Ill chim back in tomorrow with size of wood screw I used ).The modification was to simple jb weld a nut on the end of the head ,this was for 2 reasons ,one so the screw wouldnt end up in the block ,oopps ,second was to have a finger grip to spin and twirl like a q-tip going after a waxy ear .As the screw was placed in the first GP hole it had resistance at around the area the GP end starts ,after you twirl the piece and move it in and out it frees up enough to then rasp at the up and down and around motion thus going after the area that the GP heated tip resides.After the cleaning I cranked the engine over 4 or 5 revolutions to blow out the free carbon then it was on to the next .Just as a good tip I add some oil to the threads of the glow plug since carbon is present at the exposed threads and may need abit of earl .The car had been a tough starter in the morning recently and I knew I was due for some new GPs .After finding 3 non working units I was back to putting everything back together .The next morn it was cold enough to see if the service was a success and it was, a fired motor after one cycle of the plugs.Outside temp was only 58 so the 30s in Dec are going to be the real test.