Thank you all for your feedback.
I've made a decision to continue SC install but do have a plan for my approach. :dance:
I'm not going to spare any expense in tuning/reflash procedures to ensure proper ratios.
Although this may take a while, I will rest asure knowing I've covered all bases for success and didn't leave margin for error.
Until then, I'm going to enjoy the Boxster to the fullest and hopefully continue to due so afterward.
I will keep you all posted.
Wish me luck!
And if you have any advise, it's not too late and still very welcomed.