Ok, I'm gonna jump in here and try and outline it a bit easier for everyone
All the SP speedo's (LPF's and Pro's..colour is effectively irrelivent...although we all know blue is faster
) come with a standard programming box. This uses the two screens, where you can scroll through the numbers for each setting. However, you
can't update the speedo firmware with it, so your stuck with the standard 205g software, which is great for mod, not so good for stock...
Now the LCD box allows the same setting adjustments as the standard box, but does on some settings allow a custom option to fine tune. Drag brake is a good example, where you can change it in 1% increasements.
There is also the three profiles that can be saved on the LCD box (as Seaball mentioned), where you can have three different groups of settings saved on the LCD, and quickly flick between them. This
doesn't alter the firmware on the ESC though.
And finally, the LCD box is the only way of updating the speedo firmware, in conjunction with a PC and the SP software. You can't update the speedo firmware with just the LCD box trackside mind, you still need a PC/laptop/netbook with the software to do so. As I mentioned before, all the firmware versions are avaliable within the v1.31 or v1.32 software package. Just install the software, and then you can select the required firmware from the drop down boxes
So, i would suggest getting an LCD box regardless... and even then the speedo's are certainly competively priced against others on the market (Tekins still require the Hotwire connection etc).
HiH
Ed