You might have already noticed this but in the Professional Implants shop you are not limited to buying pre-made implants from your Prof terminal only. You can buy pre-made implants that you can use from any of the Prof terminals and many times you will find a better cluster/implant configuration for the way you have developed your character.
Tip 2)
Treatment is based on Intelligence (60%)--shift right click on any of these and it will tell you. So if you are in need of a few extra Treatment to get that implant in, remember that for every 3 Intelligence you spend IP on you get one Treatment-actually if you have the IP to spend you can get a lot of treatment this way. The other perk to this is that a bit of extra intelligence will keep ya from doing this
