diff --git a/js/bullets.js b/js/bullets.js
index 91ef186..53f10a1 100644
--- a/js/bullets.js
+++ b/js/bullets.js
@@ -1001,20 +1001,20 @@ const b = {
     },
     {
       name: "perfect diamagnetism",
-      description: "when <strong>blocking</strong> with the starting <strong>field emitter</strong><br>gain <strong class='color-f'>energy</strong> instead losing it",
+      description: "you <strong>don't</strong> lose <strong class='color-f'>energy</strong> when <strong>blocking</strong><br>with <strong>nano-scale manufacturing</strong>",
       maxCount: 1,
       count: 0,
       allowed() {
-        return mech.fieldUpgrades[mech.fieldMode].name === "field emitter" && !game.isEasyToAimMode
+        return mech.fieldUpgrades[mech.fieldMode].name === "nano-scale manufacturing"
       },
-      requires: "basic field emitter",
+      requires: "nano-scale manufacturing",
       effect() {
-        b.modFieldEfficiency = -1
+        b.modFieldEfficiency = 0
         mech.fieldShieldingScale = b.modFieldEfficiency;
       },
       remove() {
         b.modFieldEfficiency = 1;
-        if (mech.fieldUpgrades[mech.fieldMode].name === "field emitter") mech.fieldShieldingScale = b.modFieldEfficiency;
+        if (mech.fieldUpgrades[mech.fieldMode].name === "nano-scale manufacturing") mech.fieldShieldingScale = b.modFieldEfficiency;
       }
     },
     {
diff --git a/js/player.js b/js/player.js
index 12203bc..4bf9df8 100644
--- a/js/player.js
+++ b/js/player.js
@@ -1111,7 +1111,6 @@ const mech = {
         if (index === mech.fieldUpgrades[i].name) index = i
       }
     }
-
     mech.fieldMode = index;
     document.getElementById("field").innerHTML = mech.fieldUpgrades[index].name
     mech.setHoldDefaults();
@@ -1122,7 +1121,6 @@ const mech = {
       description: "use <strong class='color-f'>energy</strong> to <strong>shield</strong> yourself from <strong class='color-d'>damage</strong><br>lets you <strong>pick up</strong> and <strong>throw</strong> objects",
       isEasyToAim: false,
       effect: () => {
-        mech.fieldShieldingScale = Number(b.modFieldEfficiency);
         game.replaceTextLog = true; //allow text over write
         mech.hold = function () {
           if (mech.isHolding) {
@@ -1535,6 +1533,7 @@ const mech = {
       isEasyToAim: true,
       effect: () => {
         mech.fieldRegen *= 2;
+        mech.fieldShieldingScale = b.modFieldEfficiency;
         mech.hold = function () {
           if (mech.energy > mech.fieldEnergyMax - 0.02 && mech.fieldCDcycle < mech.cycle) {
             mech.fieldCDcycle = mech.cycle + 17; // set cool down to prevent +energy from making huge numbers of drones
@@ -1579,7 +1578,7 @@ const mech = {
     },
     {
       name: "phase decoherence field",
-      description: "use <strong class='color-f'>energy</strong> to become <strong>intangible</strong><br><strong>moving</strong> and touching <strong>shields</strong> amplifies <strong>cost<strong>",
+      description: "use <strong class='color-f'>energy</strong> to become <strong>intangible</strong><br><strong>moving</strong> and touching <strong>shields</strong> amplifies <strong>cost</strong>",
       isEasyToAim: true,
       effect: () => {
         mech.hold = function () {
diff --git a/todo.txt b/todo.txt
index affafd8..e5e383e 100644
--- a/todo.txt
+++ b/todo.txt
@@ -5,7 +5,8 @@ mod - vacuum bomb pulls shields off the mob
 mod - vacuum bomb stuns after the explosion
   maybe it also does DoT damage
 
-mod - blocking with nano-scale is more efficient, like perfect diamagnetism
+mod - improve blocking with nano-scale is more efficient
+  like perfect diamagnetism maybe
 
 mod - time dilation - Quantum Recovery
   Expending all your energy while using the field will
@@ -15,10 +16,10 @@ mod - time dilation - Quantum Recovery
         put the array in the time field object
     cause the player to go back in time when the field was first activated (easier then going back to 3 seconds before)
 
-bug getting stuck in crouch mode
+bug - getting stuck in crouch mode
   press T to see it visually
-  happened twice
-    once right after selecting a mod lots of blocks around
+  happened twice to me so far
+    once right after selecting a mod with lots of blocks around
       I don't think I was holding a block
       might have been standing on a block... not sure