which seems to work the best for you??

It's a toss up. I like 75x105 but would use 90x90 without problems if needed.

I use the 90deg. It kind of reminds me of a boat prop with 4 blades (balanced). Like Charlie said they both work fine.

Yep my favorite is 90 degrees.

Tried both on two longbows - neither liked the 75x105 and they do well with the 4x90 - I really like the 75x105 looks like more clearance. Both bows don't like cock feather in either - hope that helps.

I use 90x90 personally, but I dont really think it matters which you use. Either will fly well.

I like the 4 fletch 60-120degree configuration, better feather clearance for me.

I think I get better clearence with 90x90

guys using 60/120 how do you line your nock up.

EricW.   It's the same as 3-120 degree. Hard to explain, but you only use the first two positions on your fletching jig, then pull the arrow, rotate arrow 180 degrees and put back in jig and repeat. Clear as mud?

I guess I didn't make it clear. What i was trying to ask is when you have the arrow nocked on the bow how does the fletching align. Is the 120 facing the sight window or the shelf on the bow? Hope that helps.

For a right handed shooter you will have feathers at 2:30/8:30 and 12:30/6:30 for the 60/120 fletch. These are approx.

really doesn't matter, they both get the job at hand done.  

i use 75x105, but 90x90 works just as well.

just try both and make up yer own mind.