Forecast AI RED and XATA challenge GREEN - Same inputs vastly different results

As the title says there is a mismatch between the output for the two program settings.

General settings and availability identical.

4w increase perfectly achievable over 6 weeks, finish date 17/05.

4w increase over 6 weeks, same finish date 17/05, same settings Forecast AI has it red unachievable.

I was looking at scheduling a 9-10 month slow rolling gradual increase in 10 or 20 min power (10-15w) using forecast ai - not matter what I schedule as whether it’s 2 months or 9 months, achievability is red. I tried a race planner, set Mallorca 312 for a years time (or just under as this years race is soon). Again nope you can’t achieve that even after a year of training.

As per above my stats are not bad and I’m not starting from zero but I’m now lost at what exactly I’m I going to gain with XERT? I’ve just paid a year subscription and quite frankly I’m very disappointed that the two training algorithm can’t even align and when I try to allocate a year long training plan to give me enough time to build (a more than achievable increase in fitness/power - 10w over a year!) it fails at the 1st hurdle.

Pay attention to the start & ending TLs with XFAI. Your displayed program would require you to almost double your High training load in 4 weeks. Ouch! Try using Polar specificity to shift some of the emphasis on your High system towards your Low - but this might increase your time requirement.