Frankly Wil, when people have free access to the La-7, it's pretty unfair for the Brit fans as to see the Tempest being perked, and at such high prices, too.
Now, before you go and say the Temp is different from the La-7, listen to this:
For vastly superior armament of quad-Hizookas, ordnance, and a bit better high alt performance(but the Temp's not an exceptional performer at high alts, too), let's say we give each of those attributes a 4 point perk worth.
This 4 point perk per attribute assumption is not arbitrary - I'm basing it on the C-hog.
The C-hog is not an exceptional performer, and the D-hog which has very simular flight characteristics and even more ordnance, is non-perked.
People overused it due to the fact that the balanced qualities in armament(literally, the Hizooka made exceptionally effective thanks to AH style of damage infliction), possibility of carrier operations, and a heavy overloaded strike package, made it the one-and-all plane of choice. Quad-Hizookas of nearly 900 rounds of cannon made it possible for people to achieve phenomenal numbers of kills, at the same time, being able to carry heavy ordnance. It was THE vulch-craft.
Thus, it was finally decided to be perked at 8 points. So, divide the 8 perks by the two characteristics that made it an overused plane - and you get 4 points per attribute.
..
In that case, 4 points for Quad-Hizookas, 4 points for 2000lbs ordnance, another 4 points for pure performance - and that's still only 12 points. The Tempest is overperked by at least 58 points.
Or rather, if the Tempy should be perked at 70 points, subtract the three major attributes the La-7 lacks compared to the Tempy and it's still 58 points left - meaning: the La-7 should be perked at 58 points, of considering it should be fair.
Same thing with the Spit14.
Compare it to the Bf109G-10 which climbs the same as the Spit14, has twice the WEP duration, faster than the Spit14 at lower alts, same speed at high alts, but suffers from inferior balance of maneuverability and control heaviness at high speeds. Also, weaker armament(if not weak in power, a la MK108, then weak in effectivity).
So, 4 points for exceptional climb qualities, 4 points for overall balance between speed and maneuverability, 4 points for Hizookas - 12 points. Subtract 12 points from the 60 point Spit14, and the Bf109G-10 should be a 48 point plane, in all due fairness to the RAF fans.
....
It's pretty obvious then.
Four possible solutions:
1) leave it as it is
2) unperk all of them
3) lower the perks on the Tempy, 4Hog, and Spit14 and Ta152.
4) lightly perk all of the late war planes.
1) is really unfair. 2) is unacceptable.
It should be either "3) or 4)", or, "3) and 4)"
Personally, I choose "3) and 4)". All the late war planes should be perked lightly, according to the logic and agenda which I have been lobbying for a long time(details in my sig).