As Nevada_TDI says, I based my work from the topic that is somewhere on this forum, and from a couple guides about EDC15 that are on ecuconnections, then I went and download around 20 rate my tune files for ALH, AHF and ASV engines, while also reading the comments about what was good and bad about the tunes.
The best one/best well explained one is for sure hneel work:
http://www.ecuconnections.com/forum/viewtopic.php?f=152&t=11343
I also recomend you to read the EDC15_rev1.3.pdf(also available on this forum in some big thread about ecu tunning that I never remember the name
):
http://www.ecuconnections.com/forum/viewtopic.php?f=2&t=867
Then a cheap MPPS cable, always remove the number 15 fuse and connect a battery charger so you dont end up with a bricked ECU due to voltage sag during the write.
Today I pulled all my maps into a calc/work sheet(aka excell) and revisited all the maps, bumped the torque limiter a bit on the low and high end, and will try a new smoke map down to 17.8:1 AFR, VagEdit/EDC15 Suite and see if I kill my clutch and or end with a smoke train and revert back.
Its not as easy as paying for a ready made tune, but its all that hard, that being said I have part of a masters in electronics engineering and my work is grabbing and idea an making a schematic, laying out a pcb, programming if need, making pc interfaces, designing enclosures in CAD, put them to CAM, machine and deliver a ready made product, also, repair laptops on the weekends, and have been tunning two strokes since I was 13, I never paid for something that I could learn, I will always learn how to do it and do it my self, not because I'm a cheapskate but because I like to understand why and how things are done and how they work.
EDIT:
Regarding the maximum injection, your pump/nozzles are already setup to deliver 51mg/str, but your stock maps wont ever go near those values, my codeblocks for automatic specify a maximum of 36mg/str of IQ, there are still 15mg of fuel that can be delivered that are not being used by the stock maps.
If you want to start playing around, get VagEDCSuite(version 1.3.9), create a project, load your dumped bin, and just look around all the maps, a basic tune will involve raising SVBL, raise boost target, raise the 85 and 100% drivers wish a bit so its always the higher value, raise your torque limiter a bit, and them export the smoke limiter map to excel, just divide the IQ values by the axis MAF air mg/str and you have AFR, as usual the original map wont go over 800mg/str of air, so you change a couple axis values to go up to 950mg/str and you change the values to stay above 18:1 and with a maximum of 2100/1.1 bars of boost you are in the 100hp territory, also, fill the EGR map with 850's so you delete it.
EDIT2: Lots of typos/bad grammar I know.