I am shooting the ICS hunter 500's out of my 51# recurve and they are flying great.  My question is I want to buy the MFX Classics and shoot them.  It appears that the weight in GPI is quite a bit different.  Is this going to affect my arrow flight?  Will these arrows work?  I don't want to dump $90.00 on shafts and find out that they don't work.  I am assuming since it is still a 500 spine it should be fine!      Thanks

The spine should be exactly the same. They will just weigh a little different.

Since these arrows are narrower than the ICS, you'll find they make your bow act a bit more center cut.  These have actually been the easiest to tune shafts for me.

I am shooting the MFX Classics 500's out of my Silvertip (50# @ 27") and my Morrisdon TD (54# @ 27")...the arrows have 100 grain insert and I can shoot allot of different broadheads with no problems.....

I'm shooting the MFX Classic 400's out of my ACS-CX.  I also have 90gr weight tubes installed.  You won't see a huge difference out to about 25 yards and should adjust pretty quick.  Beyond 25 yards you will definitely know they are heavier.  The further out the more you see it.

Rocky, what length are you cutting them at? 28"?
Im shooting a 54@27 Silvertip non-ff.

Brad.....they are cut at 28"...I have shot them split fingers and thre fingers under too....they still work fine with allot of different broadheads.....

Thanks Rocky!