It is completely unnecessary, regardless of installation method.
I've been putting my own grips on since I was 12. I do it the way my dad taught me and like his dad taught him. (I did add something for efficiency and less consumption) It's super cheap and easy.
Supplies: Grip tape, lighter fluid, two cereal bowls or tupperware.
After removing the old grip and tape, put the desired amount of tape on the grip and peel off back.
Use your finger to block the little hole in the grip and squirt lighter fluid in. Fill for about 7 seconds. Then cover both ends and shake the grip to disperse lighter fluid.
Next, put the club upside down in the bowl angled so that the shaft is in a corner.
Pour lighter fluid out of grip down the tape on the shaft, rotating as you pour.
(My addition to the process)= Since you used the bowls, after the first grip, you'll have extra lighter fluid in one of the bowls. Simply use that as extra fluid when pouring on the tape to make it easier.
*Sorry for length. Turned out it's easier said than typed.*
That, and once you insert the air nozzle, it will not only pierce the tape, but when you apply the air any "seal" it made will be toast anyhow.
My installation process (I don't have a compressor, workbench, clamp, pouring tray or anything else fitters use) which I've never had issue with yet:
- Cut tape to the correct length for the grip.
- Stick the center of the tape (along the length of the shaft) onto the shaft leaving 1/2in extra loose at the end.
- Rub the tape with a curved finger from the center outward toward the short edges until half is stuck correctly and repeat for the other half until it's wrapped around the shaft completely.
- Peel back the tape to reveal the sticky side and pinch and twist the overhang, pushing it down into the butt of the shaft loosely.
- Put a tee in the small hole in the end of the grip and fill the grip up with mineral spirits to the top.
- Rest the end of the taped shaft in a small pot and gently pour the mineral spirits out of the grip over the tape and let it run down into the pot, turning the shaft while pouring to make sure it's all been covered with spirits.
- Turn the club over and put the head of the club on the floor, pull out the tee from the grip and quickly slide the grip down over the tape as squarely as possible.
- Make sure the grip's as down as it can be and make any adjustments to twists and misalignments when still wet.
- Leave to dry (normally I leave mine until the next day)
If I fitted grips enough I'd invest in a compressor as they're MUCH easier to install! lol
... I've found best results if I hold my finger over the little vent hole at the butt end of the grip, pour a little solvent into the grip, cap the other end with a finger and then shake it around to get the inside of the grip nice and coated. I then pour out the solvent from inside the grip onto the shaft to wet the tape, and slide it right on. ...