Other than PDI are there any other hop-up options for the L96? I'm just curious if I can find a good hop-up for it that doesn't actually have 2 control arms. My plan is to get one with just one arm then put in a concave spacer to make adjustments easier while still keeping the improved accuracy. If this is fool hardy and the PDI is the only way to go let me know, but I just don't like the idea of it being so difficult to have to adjust your hop-up each time with the PDI.