Can i use a 56k resistor on a tubescreamer

[camperus]

Im building a Ts using this layout
http://www.generalguitargadgets.com/pdf/ggg_its8_bom.pdf
The problem is that i have a 56k resistor and R7 is 51k. There will be much difference replacing that?
Thank you!
I have 1N4148 diodes instead of the 1N914, i think it must work but any help will be welcome 

[Mark Hammer]

Both substitutions are fine.  The only difference the 56k resistor will make is that you won't be able to get it quite as pristine clean, since it sets the minimum gain of the circuit a little bit higher.

But tell the truth, just exactly how many TS users set their gain knob at 7:00?  So, for all practical purposes, you won't notice the difference.

[camperus]

thanks!!!