actually it works pretty good.
On the PCB pads, the center hole is 1 mm in diameter, the pogo-pin round header is about 1.3 mm in diameter, so the pogo pin won't pass through the via on PCB, and the spring force inside of the pogo-pin will secure a good contact between the gold-plated pogo-pin header and the pads. 

This design (round head) also provides very good self-alignment when via style Pads are used on PCB .

Every single pogo-pin consists of a socket and a pin-header, the later is replaceable (after 500K~1M times of usage) for very high volume production usage.

 Funny N.
Au Group Electronics, http://www.AuElectronics.com




________________________________
From: Forrest W Christian <forrestc@imach.com>
To: Microcontroller discussion list - Public. <piclist@mit.edu>
Sent: Sunday, April 26, 2009 8:32:47 PM
Subject: Re: [PIC] CCS Tag Connect ICSP

How is mechanical stability achieved with the pogo pins?  That's always 
been my problem.

-forrest

Funny NYPD wrote:
> We have a similar product released for quite some time, and cost less than half of its price. On our design, each pin can carry up to 3A continuous current.
>
> Here is a picture
> http://www.auelectronics.com/images/CBL_0703_POGO.jpg
> It can be used with our BB0703/BB0703+ family, ICD2, ICD3, RealICE, etc.
> http://www.auelectronics.com/System-PICkit2.htm
> Users manual:
> http://www.auelectronics.com/pdfs/CBL_0703_POGO_UserManual.pdf
> More info is available at our blog link:
> http://augroups.blogspot.com/2009/01/cbl-0703-pogo.html
>
>  Funny N.
> Au Group Electronics, http://www.AuElectronics.com
>
>
>
>
> ________________________________
> From: Forrest W Christian <forrestc@imach.com>
> To: Microcontroller discussion list - Public. <piclist@mit.edu>
> Sent: Sunday, April 26, 2009 3:59:04 PM
> Subject: [PIC] CCS Tag Connect ICSP
>
> Was wandering around the CCS site within the past few days and came 
> across this:
>
> http://www.ccsinfo.com/content.php?page=tagConnect
>
> Is anyone using these?   Right now I leave an empty 6 pin header place 
> on board (I pre-program the pics before they go on the board), and will 
> either use one of those DIP test connector things or solder the header 
> in place if I need to program a chip after the fact.
>
> This looks like it might be simpler... assuming it works.
>
> -forrest
>  

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