have you modded the original maps yourself, or are these ones that you have obtained and tested?
what power increase are they?
I understand the tuners issues and software copywrite issues here as it destroys business.
I also understand that people want to do things themselves and play around with maps and have some fun.
I take a neutral postision here, as I also have a reflash tool and have tried and tested obtainable maps (and to be fair, the power increase proven on the rolling road was very good), that said, over 230bhp from an old 140JTD is not something you will acheive yourself, and the folded notes of mine often end up in the palm of Red Dot - at the end of the day, you can have some fun with maps, be careful not to infringe on copywrite, accept the risks and the fact it is unlikely to be as good as something that has been tweaked on the rolling road.