Just found out about this little rippers 

Blood that is a pearler, checked em out, and see a number of different kit sizes available for reasonable pricing too. I could have done with these a while ago, might grab some, as recently spent on heat shrink, that must have been embedded with gold from a electrical joint...

I've known about these but never used them, they do look like they would simplify a splice connection. 

I have been using them for a while, very easy to use and holds well, I will see how they go for water as I have done my boat trailer with them

I thought they had a a heat glue in them as well that would provide water tightness.  Might give these a try actually.

Just same procedure as I used to do for the heatshrinking, borrow the wife's hairdryer turned up high.