Great thread!
Here are a couple of examples of mine.
First if you are NOT comfortable with the mechanics of taking apart your VTR please do not try any of this.
The SS screws are very tiny and I have no idea where to get replacements or how to repair the threads if cross threaded.
Sorry it is 4:30am here and I do not have the link but there is a thread on ECF where the guy has pictures of taking one apart. All of the parts listed are from Fasttech.
I chose not to mod my VTR (by sanding or removing the ring) so......
Using a T6 torx: WLXY WL2013-T6 Torx Precision Screwdriver
WL2013-T6, Torx T6 / SKU: 1205006 $2.48
1. I remove the 2 SS screws fron the top of the VTR.
2. Also remove the 2 SS screws on the side close to the top button (carefull these are VERY tiny.)
3. With a little bit of wiggling the top section of the VTR will lift up, be carefull not to lift to high or quickly as there is a small wire attached which may tear. You only need to lift it about 1/4in.
For a Genny experience I have used:
Steam Turbine Genesis Style Rebuildable Atomizer (3.0mL)
Stainless Steel / SKU: 1479600 $12.93
But I did get some leaking from sitting with it in my back pocket when out and about.
I do like the Kayfun experience for the vape quality and no leaking in my pocket so now I am using:
Kayfun Lite Styled Rebuildable Atomizer (4.5mL)
Kayfun Lite, PMMA / SKU: 1651401 $12.87
Kayfun Nano Body Kit
Kayfun Nano Kit, Stainless Steel (3 Pieces) / SKU: 1649900 $5.19
Replacement Tank Section for Kayfun 3.1 / Kayfun Lite
Tank Section, Blue / SKU: 1644301 $1.18
I did have issues with the top piece where the drip tip goes into. the small chimney tube did not go into it far enough to screw down all the way so I used the one from...
Spare Parts for Kayfun v3.1 Atomizer
Spare Parts, PMMA(for Kayfun v3.1) / SKU: 1570900 $5.12
After installing the RBA into the 510 simply re-position the VTR top back ( it should sit in the same place it came from with very little effort) and screw it together, the screws should turn in easily and only feel tight when seated all the way in. Do not crank on them they only should be snug so they do not come out by themselves.
I recomend doing this part on a large table so when you drop a screw you can find it!