I have been climbing for about 7 years now ,but I have only used my flip line with no second point of attachment. Dangerous and stupid I know but realizing my luck will only last so long I would like to find out the best way to tie in twice or TITS as I have seen on these forums. I have a Buckingham ergovation saddle with two floating D rings in the middle. Do they sell anything that is premade for safety and positioning purposes(for second point of attachment)? I would like a second vertical line to position on limbs above me when working in the tree. I was thinking of making a 20 ft line with a biner on one end that would go over branch above me and back down to my left d ring and on the right d ring a biner with a prusik for adjusting. any descriptions in laymans terms would be helpful. Thanks