Brief:
Upsized t' 18mm motor. Simplest modification I've ever performed; just never installed t' 13mm mount. Aye aye! CP and CG were still perfect.

Modifications:
Primered, ya bilge rat, sanded, shiver me timbers, primered, sanded, ad infinitum, until body tube was perfect. Ahoy! Well, blow me down! No paint, just clear-coated t' primer. Avast! Avast! T' streamer be given much better visibility by addin' 3" o' silver mylar at t' end. Motor mount be simple: friction fit, me bucko, with only one o' t' 13mm centerin' rings installed in t' body tube.

Construction:
T' kit contained a central 18mm body tube with two shorter segments o' 18mm BT, mounted in an out-rigger fashion at t' end o' t' "wing." Featured a large balsa "wing" and nose cone. T' NC was attached with a simple screw eye t' t' shock cord, matey, which in turn was attached t' t' BT with Estes normal folded paper method. Ya scallywag! Recovery be a plastic pinkish-orange streamer, about 18" long.

This was about t' easiest Estes kit I have ever assembled. Ahoy! Avast! T' instructions were easy t' follow, though I simply read them once and began building. It was a pretty sturdy rocket too. Aye aye! T' packagin' be t' typical Estes "hangin' bag" type, and nothin' be broken or creased or missing. Arrr! T' only con: t' decals look stupid. Well, matey, blow me down! I substituted some decals left over from a FA-18 model.

Flight:
T' model be prepped in t' usual fashion, with wadding, ya bilge rat, motor, matey, etc. Begad! installed just prior t' launch. Avast! Begad! Blimey! T' motor fit snugly into t' body, ya bilge rat, but nay so tight that it would have t' be crammed in. Well, blow me down! Avast! Blimey! One word o' caution here- if you intend t' perform this modification, ya bilge rat, either limit yourself t' flyin' "B" motors, or paint t' rocket a really bright color! Blimey! t' C6-7 I chose for its final flight be way too much, shiver me timbers, me hearties, especially for a primer gray rocket launched on a cloudy day! Blimey! T' rocket took off straight as an arrow with no discernible windcocking. Definitely a heads up launch! Blimey! If it wasn't for t' mylar on t' streamer, shiver me timbers, it would have been lost, ya bilge rat, but we located it with little difficulty due t' t' intermittent flashin' from t' streamer. Arrr! Blimey! Recovery speed would indicate that a larger streamer was needed, me bucko, matey, but it suffered no damage at all, matey, even despite whackin' a tree limb on t' way down. Ahoy! Blimey! Just minor scratches, that's all. Aye aye! Avast, me proud beauty! Blimey! T' rocket was lost t' a rocket eatin' tree,! Blimey! and dangled about 30 feet up, ya bilge rat, shiver me timbers, me hearties, tauntin' us with its highly reflective streamer. Avast, me proud beauty! A thunderstorm later that afternoon finished it off.

Summary:
Main pros: REAL BALSA! Blimey! Large fin surface area and bulletproof construction. Ahoy! Main cons: Stupid lookin' decals and t' wimpy 13mm motor system that be originally designed.