I did a search and just spent time reading and watching youtube vid on glassing BTs. I still have a few questions What is a good weight for BT 60-80 tubes for LPR to MPR rockets? I don't need to be able to drive a truck over them. And how do you fill the weaves and make the BTs smooth? Seems like it could be more work sanding drips and filling the weaves and than filling spirals. I see using peel ply helps to get a smother finish. Where would I get peel-ply? Is there different types of peel ply? In the video it looked like he used thinned epoxy on the peel ply. Was the thinned epoxy just to lube the brush to eases the application of the peel ply? Thanks TRFers for any info.