so, this is my new GRSVP mod. it's light on pens needed and spins very well. i do believe this is my first good mod! it took lots of trial and error and a lot of pens were lost, but i'm very happy with the end result. so here we go:
The GRSVP Mod by slickhareMaterials:
-1 Pentel RSVP (body, cap)
-1 Pilot G2 (front end, ink tube)
-Electrical Tape or whatever tape you prefer
-Something with which to cut the bodies
-a lighter or whatever you use to remove clips
Stats:- slightly longer than MX
- GRSVP
> MX > ComSsa
Procedure:1) remove the grip, ink tube, and back end (the little thing that screws on the back) from the RSVP so that you're left with the body and the cap. Take the G2, and unscrew the front part, and remove the ink tube.
2) take the front end of the G2, and remove the spring from inside. use a chopstick or anything thin enough to wiggle around a bit inside the front end. now cut off the threading (as shown in the picture below, the red line shows where to cut), and sand down any uneveness.

3) take the G2 ink tube, and remove the small black piece on the back that is circled in the picture below.

4) now take the RSVP cap and remove the clip like usual. take the body and make two cuts at the red lines shown in the picture below. (if hosting fails later, the front end below the two ridges on the tip of the RSVP, and the threading on the back end) sand down the back end where the threading used to be.

5) now take the RSVP cap and put it where the tip used to be. it should fit snugly when you push it down.
6) take the G2 front and the ink tube. insert the ink tube backward into the G2 front so that the tip of the ink tube points in the opposite direction than usual. push it down until it's secure.
7) now take the assembly made in step #6 and push it into the open side (what used to be the back of the pen) of the RSVP body until the G2 front and RSVP body are flush. (WARNING! the ink tube WILL NOT come out of the RSVP body, to my knowledge you can't take it out) if it doesn't flush immediately. remove the G2 front and cut off small pieces from the ink tube until the g2 front and RSVP connect.
8) take the electrical tape, and wrap it around the area where the RSVP and G2 front connect. (if the g2 front wobbles, that's normal. it shouldn't break off unless there's some unusual force on it)
and we're done! here's the finished product and proof of balance:


please comment! or even better make it! enjoy
;)