so after much research i have found these 3 ways to end the ultra sling.

#1 -the treestuff standard style termination.
pros-faster, less rope,rope doubled all the way thru so stronger, has been tested by pro's so has known mbs,
cons-long tail and unusable first pocket+tail
#2 -the eye splice end
pros-all eyes usuable, could be used with ring n ring or ring and block in a basket configuration as retrievable sling or standard ultra sling with ability to have a ring on one end and a removable block on the other so you can choose which on u want to use instead of being locked into only 1 or the other
cons-more rope per ft of sling, weaker since last eye is only 1 leg of rope
#3 -class 1 end for end splice loop-direct bury
pros-could be used with ring n ring or ring and block in a basket configuration as retreivable sling or standard ultra sling
cons-uses alot of rope to bury tails, weaker than #1, useless first pocket like #1
i found instructions for the brummel end for end here-
https://www.teufelberger.com/pub/me...Strand_Single_Braid_End_For_End_Brummel_1.pdf
this thread has given me some ideas i wonder if anyone has tried?
#1- the locked brummel end for end splice instead of the regular end for end in sling #3?
how would the brummel at the end affect mbs? anyone tried it and had it tested?
#2 has anyone used sling #2 with 2 rings or a ring and block in a retreivable basket configuration? seems like if the mbs is more than enough for what your rigging the loss in strength compared to sling#1 is worth the gain
#3 -

has anyone tried a second ring on a thimble loop like this wrapped around the ultrasling in a prussic to increase bend radius and give u the choice of 1 or 2 rings? like tom hoffmans beast whoopie where he adds the extra ring...
im trying to figure out the most versatile style sling that i can make with my 2-#3 abr rings. i want to be able to add a second ring for heavy loads but have the option to remove it and have a lighter duty easy to carry sling. as well as have the choice to add the block to end #2 and use it like a retrievable ring n ring. so far im leanbing towards sling#2 made of 3/4 or 5/8 with a thimble loop made of 1/2 or 5/8