Can't get anything with a search.  

I have always shot with 5" feathers.  I'm starting to make my own fletchings and was thinking it would be easier to get two 4" from a feather.  My question is is there any difference between the 4" & 5" for stabilizing broadheads?

If specs make any difference I'm shooting 45@27"
Arrows are 510 gr total.

I use four in.  I will never use anything bigger. I just don't see a reason for it and I can tell a speed diff with a smaller feather.

Three 4" will give you enough stability on a well tuned arrow to get the job done. If you're still worried though, switch to 4, 4" feathers...

firstly, yes - the forum search engine works just fine, what matters mostly is what words to search on.  try 'four inch feather' and not '4" feather'.

second, asking questions yields opinions that may be good for starters but the rubber will meet the road when you do your personal homework.

so, fletch up some shafts with 4" feathers and see for yourself if that will work with your form, your bow, your kinda bowhunting.

if you chop or burn fletchings, try different shapes and different feather heights, and by all means do try a 4" four fletch.

I switched from 5.5 shields to 4-4.25 naners after swing Robs how to on chopper modification.  I shoot a Magnus I 160grn. Anna the only thing I notice is that my arrows are quieter. Plus 4-4.25= 17" of feather and 3-5.5=16.5" of feather if that makes a difference. Lower profile = quieter arrow. Haven't tried the 4" shields though.

Keeping the Faith!
Magnus

Go for it. I switched over a year ago and can see no difference, other than the 4 inchers are less expensive.

I shoot 4" feathers on my skinny Beman MFX Classic carbons. Smaller diameter shafts are easier to stabilize so longer fletching isn't usually necessary. However, if you are using large diameter shafts you sometimes may need to use longer feathers. It all depends on how well your arrows are matched to your bow. If properly matched and tuned, you can shoot a log through your bow with 3" feathers and get great results!

Like Rob said, "the rubber will meet the road when you do your personal homework".

Thanks guys.  I'm shooting a 5/16 shaft and bareshafted when coming up with the leangth/tip weight combo.  Never shot anything but 5" before and I have never been able to not get an answer here so put the question out there.  Once again good advice.