Do you know the inside view of a tyre string plugged? I learnt a lot yesterday. here is how it look like
The hole is much bigger than just from the original nail or screw. Not only that. This is inside view of tire after the string plug was placed.
If you will grind the inside surface of the hole for patch repair. You should remove the blob. And if you remove the blob, masama rin yun little plug in the hole, or ma detached easily. When glenn_duke was describing about patching after plugging days ago. I imagined the string plug as extended straight and the tyre much thicker, so kala ko ma retain the plug after inner surface grind. Pero realized hindi puwede yesterday.
If you leave the hole open, it's much larger than from the nail when you do any patch as first attempt without any plug. Much mabilis ma rust belt with open hole.
Therefore hindi feasible yun patching it after removing the plug. Hence I'm repeating the plug, just tell me saan exactly vulcanizing shop with complete plug kit and procedure used. Remember sa akin they didnt use reamer to roughten the inside hole and didn't use rubber cement but instead oil.
This is complete and right procedure to do a string plug, reamer must be used and rubber cement
Tyre Puncture Repair Kit Tutorial - YouTube
I owned the car for 6 years already, the tyres original and not yet replaced.
Wala mabili na mushroom patch dito. I checked at lazada last night and it will take a week or more from china to arrive. I need to use the car before one week. Unless Syuryuken can share a piece of them here since the minimum you can buy is 20 pieces?

Also hope you can tell me Syuyuken, saan exactly na Yokohama center pina install mo mushroom patch so doon ko rin pagawa. Mahirap yun pa try mo sa any vulganizing shop for first time. Kasi you still need to put sealant around the mushroom flat head after putting the rubber cement, and pulled the mushroom stem from the outside, too much force ma tear. Too little hindi maka contact. Dapat yun expert na kabit dyan.