HI Jason,

The .5 cloth that I've used in the past had a more open weave than this .7 cloth, which seems to take a lot less microballons to fill. Also the application was much easier. It took me less than 45 mins to do one side on both (2) planes this morning. You also seem to get a less "lumpy" result and sands smoother with less effort, also it would seem like you will be less likely to sand thru the cloth when your prepping for the primer. From my experience the biggest weight gain is in the primer. My weight gain on my personal vf3 just from primer was around 3 oz with the fiberglass added around 2.65 in addition for a total of around 5.5 for the glass + primer. This was also about true for the electric v2 I painted a year ago.

The interesting thing was the color on that electric v2 (look back on the v2 thread) add less than 1.5 oz. I don't have an exact number but I think you end up using less than 3 sq yards of cloth (actually what ends up on the plane) so the weight difference might be less than .5 oz anyhow. Which you could make up by needing to use less primer - maybe a lot less ?? I guess we will find out in the next week

I'll have 3 vf3s to paint shortly !!!

best regards mate,

dean