Kernel just use the Lordmod UE 8.8 ICS B7.
As for Radio i am not sure.

Hydrogen 2.2 (last) update.

Download

i am using the same radio as at you siggy. that's the latest. also using the lordmod UE 8.6cfs.
you can try the kernel included inside the rom if you feel its good.

Just wait for the newer version. Should be around today.

hmm,i am back using CM7 base mod Absolution.

Until today,my radio - RIL problems is not settle yet. Most of them i tried,but WIFI range and battery drain is still a major problem.

Currently my most running roms are from AOSP.
using the 12.62.60.27P_26.13.04.19_M - G-Ril 2.20018G
Kernel - Absolution ACE- v0.1.4-CFS

To answer 1 n 2 . Yes,it is sense 3.0.
No,it is not laggy.

I've used the quattro RC2 for 2 days and LC ICS for almost 2 days. Nothing wrong so far,as for daily usage. BUT,i need to use 3rd party camera apps like Fx Camera.

Now i am back to CM7 modded by (blackice and Hydrogen). 64MB!!! loll

Tried both last few days.
Still can say that its stable,best since it is still in beta and development.

But,i prefer to use Virtuous for daily usage.

Worth a try.
I am using the kernel by Lordmod UE.

Try to reset. Press volume down and power button. enter bootloader,and try to reset or recover.

it happened to me.but i solved it