[ffemtreed]

You just need to tune the reels until you don't feel comfortable.

I usually make sure my reels are over magged and then start taking mags out until they get a little fluffy on my during the casts. Then I add a small mag back in or use a bit thicker oil or take some line off the spool just to slow it back down a tad. This is where knobby mags are great to have, you can easily adjust it on the fly and change it with conditions.

If you are casting and not having any hint of a blowup speed that reel up a tad and try again, still not getting even close to blowing it up speed it up again and again. Its a delicate balance and its different for everyone. When fishing I usually stay on the safe side with my reels and tend to over mag them. When I know I am not going to be out long or have a lot of lines out I speed them up and play it on the edge. Just make sure you have a backup reel to use for when you blow up.