RE: To Fiberglass or not to Fiberglass?
Go for it. I tried for the first time on my TF P-51 and found it slow but not hard. I was concerned about weight on a 1/7 scale warbird so I did things a little different. 1/2 oz cloth stuck down with Z-Poxy thinned with alchohol. 2-3 coats of water based poly with micro balloons to fill the weave, prime and paint. Approx dry weight of 11# which is not bad for this kit. Looks more scale than plastic film and is much more durable to hanger rash.