hello, I would like to replace R7 with a shunt resistor of 0.0075 Ohm, I assume this will have an effect on R17 & R21. P2 should stay 10k (I already have this one). -How can I calculate the new resistorvalues? -R7 limits the max possible (short cut) current in the circuit, maybe I could increase the resistors at the 2N3055 output to ie 1 Ohm to compensate for this? thanks