Ok, I used to do all the matting for my highschool art department (many many moons ago) but it was all drawings & painting, no photographs. So cutting the mats is second nature to me, but (yup I'm finally getting to my question) I need some advice about mounting my photographs. Should I use a spray type adhesive (3M photo mount) or some type of archival tape? Should I mount on foam board or just good quality mat board? Is mat with 1 or 2 t's?