My RV-8 has an IO-360 A1D (angle valve) that currently uses one non-impulse Slick mag (4370) and one impulse Slick mag (4373). My current mags are coming up on the 500 hour inspection. I have an opportunity to get two really low time Slick mags but both are impulse mags (4373). As I understand it, I can make the switch but I'll have to install longer studs, acquire another spacer and remove the jumper from the key switch. Am I missing anything?