Speak to all tuners, then balance this put by the various feedback ppl have provided here on the forum

They are all open source tuning
Ecutek is a licensed tune
What asg and Mao offers don't have a license

A tune is only as good as the tuners knowledge and experience
And a dyno,tune is a must

Save all mods and do the tune once
Pointless to go back and forth when you bolt bits and bobs on