1- I just want to share a simple way of making your band slope ,I found out best angle for band sis 15 to 20 degree and flat /curved / round file is enough to make that slope ,even with small saw its possible but keep always the angle less than 20 ,single 16 mm band may need a 8 mm space during stretch .
2- cleaning the C clamp from epoxy /polyurethane glue is very simple just use the heat gun at the higher temp. to burn that glue residues and its look new again be careful from the toxic fumes .
3- round shaping is very easy if y use a big flat file then follow by small planer or spoke ,use template to check for out of profile and its done