The other part of getting good midrange and top end power is th exhaust systems used
Many exhaust setups are wretched, offering no pressure as needed at low/ idle rpm and then restricting badly at high rpm
The port design on most industrial setups are also not good for best power rand good low/ midrange.
The setup as used on the new DA/ZDZ/ 3M / 3W are much better as they utilize very large smooth intake ports and well directed small exhaust ports .
This design is easy to spot - there are large rounded ports on either side of the exhaust port.
Casting this design requires a different technique and generally costs more to accomplish.
For most sport flying, the effort is of little value but on all out power setups it is worthwhile.
The old open ports and small vertical ports commonly used for many years wil still run well as will non reed bank and non rotary valve setups
The BUT is that they simply don't flow as much .
The carb selection is nowhere as critical as the exhaust selection.
the problem for many is that a really good exhaust setup on a two stroke requires more space and and costs more than fiddlin with carbs.
So it's easier to play with carbs in a search for power - but nowhere as good in the results
This probably is not what some want to hear but it is the real world on power .