SSD 4 lane track using 2 PBs

Hi,

I have been told it is possible to use 2 PBs end on end (one with the track reversed) to make a 4 lane SSD track at the start finish. The mod I have been looking at is called a "sector timing" mod that uses 2 cables from the PBs to the PC.

I have seen that Pclapcounter can use 3 PBs although 2 are for fuel in/out. Can you tell me if Pclapcounter allows you to use 2PBs at the start finish for a 4 wide lane track for recording lap times etc..in this way?

Pc Lap Counter can use 2 powerbase, first powerbase will send lap detection on lane 1 to 6 and second on lane 7 to 12.
Actualy Pc Lap Counter can not use 2 powerbase for sector timing

REM:
I read somewhere that to connect 2 powerbase you need to do some electronics modification in powerbase....