even though i kinda like the idea, that would make it almost impossible for clans to focus fire...
Also, IIRC currently the price is a big factor when it comes to balancing, that may work as soon as the mechlab is out, but IMO doesn't as long as everyone is using stock variants.
The Clan vs. IS mode is the best example.
From my observation in 0.2.x it was not only failing from the fact that Clan had less startermechs and only the scat as medium.
A match normally went like this:
As long as everybody can only access lights it's about balanced, as soon as IS can access mediums they are at a big advantage because theirs are cheaper.
By the time Clan may buy the Scat everyone on IS side has heavies.
However, as soon as Clan could access their heavies, IS got roflstomped everytime.
Depending on the round time either Clan was able to catch up on IS' advance, or IS won if Clan didn't manage to do so.
In the end it looked rather balanced, but while playing it was awful!
And even though your idea is pretty interesting, I fear it'd be about the same, except that Clan may access their heavies a lot later...
IMO the Techbalance is at first needed when you want to play Clan vs IS, so i believe it won't matter that much until the "vehicle-choice-disadvantage" of Clan is balanced.
the "vehicle-choice-disadvantage" features:
- clan has no cheap tanks
- no VTOLs
- no light/heavy ASF
- only few cadet-rank mechs
- only one medium
- only one assault
- only heavies, which cost as much as IS assaults
(despite what I heard, IIRC LT and APC are accessible to Clan as well)