Repaired Game Gear, what model to mod?

Sega Game Gear, VA5 motherboard (one of the last version SEGA made before Majesco took over). The image was horrible, I had to tilt the sucker almost 90° just to see any image. Easy repair though but I did have to clean up blue crud on the battery contact by the power supply.

No visible leaky caps but a few of them did very badly in ESR tester. My meter only goes to 9.9 and one was off scale high -_-

I also have a VA1 with twin ASIC that needs recapping. Few caps did leak. Tomorrow probably as the fume is getting to me today.

I am planning to take one of the Game Gear, doing RGB mod and replacing the stock LCD with a nice one for mostly SMS gameplay. Which Game Gear could be the "best" model to keep? In addition to the 2 GG I mentioned, I also have a single ASIC VA4 and Majesco GG.

 

I am not aware of any difference in term of quality of picture/sound between the two, from all I know they should be equivalent. I have a 1 ASIC that I use as with Tim's GGTV and I do not have any problem with it. Plays SMS games flawlessly too.

But I might be interested in buying a 2 ASIC GG, So if you end up using the 1 ASIC for your mod and want to sell the other one hit me up...

Why I want it you ask?
To do overclocking experiments of course.
That is actually the only practical difference I am aware between single and dual asic. Dual can be overclocked.
There is very little information about it as Overclocking a GG is not very useful.

It is somewhat more usefull to overclock a SMS though. However doing so is kind of glitchy, as I describe in this thread.
http://www.sega-16.com/forum/showthread.php?25315-Sega-Master-System-Overclocking
So yeah basically, for science, I would like to find out if it is less, more, or equally glitchy to play SMS games on a overclocked GG vs a Overclocked SMS.