finally ordering some shorty packs this week to try them out. What's the recommended foam blocks to run in SC10 4x4 FT saddle pack? Want to make sure I order them when I purchase the battery so item # or amain link would be amazing. Notice AVID makes a battery foam set for shorty packs now to but $6 kinda rape http://www.amainhobbies.com/product_...ttery-Foam-Set