diff --git a/content/posts/diy-slimevr.md b/content/posts/diy-slimevr.md
index 45020fa..f56c445 100644
--- a/content/posts/diy-slimevr.md
+++ b/content/posts/diy-slimevr.md
@@ -21,11 +21,20 @@ To build a Full body set of trackers:
 
 **NOTE:** *Some extra components were purchased in case of defects*
 
+:warning: Huge caveats about the purchase list below :warning:
+
+1. Buy more parts than I did, ( especially BMI's ) because
+some of these have a horrible failure rate. 15+
+
+2. Maybe throw in an extra D1 ( 11 total ) because these can fail too.
+
+3. Batter chargers tend to be fine but can be prone to getting burned so be careful when soldering.
+
 ## Main parts from AliExpress:
 
 * `10` D1 Mini for `20.53$`
 * `13` BMI 160 for `18.99$`
-* `10` 18650 Battery chargers for `6.81$`
+* `10` 18650 Battery **chargers** for `6.81$`
     * Keep in mind that this will also work for regular LIPO batteries
 * *See battery section for explanation*
 
@@ -42,23 +51,43 @@ For reference I bought:
 
 * `1` ( 10 piece ) EHAO 804040 3.7V 18mAh for `32.77$`
 
-While these do work the shipping time is pretty awful compared to everything else.
-To deal with this problem you can swap those out for some Amazon basics 18650's
-and cases instead which cuts the shipping time way down:
+While these do work, shipping time is pretty awful compared to everything else.
+Looking at the order of a few months for some vendors.
+To deal with this problem we can swap those out for some `18650`'s:
 
-* 12 pack of 18650 `21.85$`
 * 10 pack of battery clips `7.99$`
+* Set of 10 batteries for `33.32$`
 
-* Total with taxes: `32.15$`
+* Total with taxes: `41.14$`
 
-Total for these is  without shipping or taxes.
-Personally I would bet on buying batteries elsewhere ( if you're in the U.S./Canada )
-since the cost is usually comparable.
+I can attest that `18650batteries.com` is a reputable place to get batteries.
+*SideNote: includes shipping but you're mileage may vary depending on source*
 
-## Total Cost With Shipping and Taxes
+## Total Initial Cost With Shipping and Taxes
 
 If you buy the 804040 batteries: `93.60$`
 
-With the 18650's from amazon: `92.98$`
+With the 18650's: `101.97$`
 
+## Assembly
 
+### Assumptions
+
+That the parts list above is being used however the points below
+are kept somewhat general.
+
+### Equipment
+
+Important to note that if you don't have soldering equipment you'll need
+to get some.
+Cheap kits can be found for under 50$ but make sure you have plenty of solder.
+
+1. 18650's are heavy so if possible
+
+For this reason it's not a bad idea to get some battery clips and mount 
+everything to that to keep things compact. When the weight of a tracker
+is imbalanced then it's much harder to mount as it tends to "swing" more.
+
+2. Heat shrink of varying sizes to clean up splices is basically required.
+
+3. \*Flux if you want however this is really not required at all.