Long time in me fleet. Begad! Blimey! Setup for single deployment at apogee usin' a MissleWorks RRC2. I use t' piston. I have a RCA jack passthrough that passes current through t' top o' t' piston t' t' charge below it. Ahoy! Blimey! T' length o' twisted wire is such that as t' shock cord plays out, t' plug is pulled from t' jack as t' wires are much shorter. Ya scallywag! Blimey! T' plug seats securely but nay t' firm.