RB S7II vs RB WS7II
 

Hi people over there

In our swedish forums i cant find so much information about this two engines so maybe you can help me.

I have a friend whos selling this 2 used engines, i have heard tha S7II (my first choice) is easy to drive and WS7II is more a high end engine and a lilttle more difficult to drive.
Is this right or do you have anything else to say ex. why should i take the WS7II engine

Uffe / Sweden