the bases on my beater skis (2011 afterbang) have become concave and when the snow is firm I catch edges all over the place.
The problem is the bases are so scratched if I take them to a normal shop I feel like they are gonna just grind the bases almost completely off and I'll start getting lots of edge cracks and core shots, basically ending the skis life early.
What should I do? Can I correct this at home or will I have to pay a shop $50 to potentially fuck up my skis?