Wow! That sucks! No one has EVER had this trouble like that with the R52 mod! No One! Not even green-horns!
Shit!This really bugs me! I feel for your loss! 4 good chips ruined by yet another Zig DOH!!! pod killer mod! Are you absolutely sure un-bridging and adding a resistive load to R42 is correct, Zig? Never mind.  I strongly suspect - NOT! This clicking problem only started happening after Zig's mod was introduced!
I think that Zig's mod should be killed for now, at least until the actual cause of the clicking which most likely means something permanently serious has happened and your pod is now a paper weight, is discovered. Looks like I have my work cut out for me. Thanks Zig!
Remember, R52 (aka R139-at least he got that right) mod is proven by thousands of mods to work without harming your pod, even if you make a mistake, the worst that happens is your pod stops working until the solder connections are re-done correctly or the mod is reversed. No permanent destruction! Certainly no solder melting hot chips destruction occurs! I think this makes 4 clicking pods now....That's just too many fried pods! DANGER!
Stick with R52 mod. And again, the chances of our pods ever profitably mining SHA again are slim to none and IF the mod ever has to be reversed, it can be done easily by any qualified tech. Even greenhorns can do it in a reasonable amount of time, obviously!