Stock build; however, arrr, I painted nose cones red for easier location after landing. Note: t' A10 engines were very stuck for both first launches, requirin' them t' be drilled, poked and peeled out, shiver me timbers, much like what happened t' Eric Lofgren ("I have found t' mini engines got severely stuck in t' upper-stage body tubes") and I think it's because t' gluin' o' t' foam t' t' BT5 causes t' inner diameter t' shrink, creatin' a restriction. Avast, me proud beauty! I sanded out t' inside o' t' sustainer motor tube area with a Dremel sandin' drum and now t' motors don't have t' be jammed in (just remember t' tape them on!). Begad! I also plan on addin' streamers t' t' sustainers for easier location.