The "largest builder" has also asked the T4.9 class to increase it
Absolute 100% rubbish.
The class association voted to raise the min weight, not AHPC. the reason is hardly anyone was under so no one was carrying weight. now round 70% of the fleet caries lead so the are all a lot closer to the same weight.
And by being closer in weight you have closer racing... and thats what its all about!