I am with Monster on this one.
Most fly lines come with a loop on the end, but if they don't, those mesh loops work great, or I make a loop in my fly line and then secure it with tying thread..then the Knot Sense (UV Goo)
Learn a Perfection Loop. Put that in the end of your leader if it does not have a loop. Perfection will hang much straighter than a Surgeons's Loop which at this point you want a straight hang
Do the Loop to Loop hand shake.
As far as attaching tippet....100% Surgeons Knot OR a blood knot, but I have to use a tool for that...LOL
Now attaching fly to TIPPET....when then I use a Surgeon's Loop. WHY?, because I can use HEAVIER tippet without effecting the flies movement.
Example: I can use 6X on a #32 fly.
LESS KNOTS down your line, the less HANG UPS in the GUIDES. I am not sure if that is your question.
Are you getting hang-ups trying to cast your line or bring it in with knots getting caught on the tip top or the guides?
Some things are better left alone, Even though, some feel they know better.