This was posted on another forum, but thought I should share here, for anyone who wants to make sure their coals don't get choked by the ash in their SFB. The fix takes about 5 minutes, costs about 10 bucks, and works very well. I was going to post it in the Chargriller Family section, but if someone wants to search for CG SFB Mod, it will be more easily found here.
You'll need to get some stainless (NOT galvanized) steel strapping from your local hardware store--cost me I think 3.99 CDN for 10 feet of it at Home Depot. You'll also need to get a basket of some sort (I bought mine for 6 bucks at the "Real Canadian Superstore" here in town, but you might be able to find something comparable--I have 2 smaller, very similar baskets I purchased at Linen N Things of all places, so it pays to go these kinda stores with your wife!).
I took these pics from the top showing just the strapping, with the original SFB charcoal grate on them, then with the basket on top, the same shots from the side, and finally, the basket in action:
Straps with charcoal tray in place:
Straps with original charcoal grate for SFB in place:
Straps with everything in place:
Side view, straps only:
Side view, straps, grate, and basket in place:
Basket in SFB, loaded for a brisket cook in the wee hours of the morning:
Hope this helps!