Do I want the heavier or lighter shift knob for my 6 sp?

I am getting an aftermarket knob to replace the factory one and wondering if getting a heavier knob will help reduce shift effort? Or do I need the lighter knob? Also, I have the URD short shifter kit which increased the throw effort compared to stock.

I have forgotten all my high school physics, so can someone please weigh in?

300 grams:

Razo RA65A Shift Knob Carbon/Dark Chrome, 300g

http://www.amazon.com/RAZO-RA65A-Shift-Carbon-Chrome/dp/B000CPJK9A/ref=pd_sbs_auto_17

150 grams:

Car Mate Razo RA119A Formula Dark Silver Manual Shift Knob - Pack of 1

http://www.amazon.com/RA119A-Formula-Silver-Manual-Shift/dp/B0015S9FFC/ref=pd_sbs_auto_9

 

heavier knob will help it slide in to the gear with less effort on your end.

 

I have a shift knob I made from a cue ball. It's seems slightly heavier than stock and shifts easier than the stock knob.

 

Heavier will help with easier cleaner shifts. I've got a 460 gram knob on my truck...

 

The correct physics answer is lighter would be less effort.
But, in the weight range we're talking about there would be no notable difference.

 

A body at rest tends to stay at rest, takes more energy to move it if it's heavy unless you intend to hammer it into the next gear go with a light one. It's just a lever if it's shorter it will take more effort. I must say it took awhile to get used to the 6 speed but I can shift it now as clean as any automatic.

 

It takes a bit more energy to get it moving- but that is offset by the assistance the heavier knob gives you advantage while moving the gears.