I'm betting the Arrow IV is a little less of a brick than the '68 Arrow I did my commercial and CFI in. Anyway, though, it *really* helped me to drop the gear and add throttle early on in the downwind. If you're at 115mph/100kts and gear down when you cut power, you've really got a good setup because of the extra 15mph you can bleed off for best glide.
I try to vary the distance my downwind is from the pattern based mostly on the crosswind component (if it's blowing me away from the runway, I fly it tighter) and adjust the location of my base turn according to the headwind component. On my CFI checkride, it was windy, so I flew a tight downwind and turned base right away and ended up nailing it. Although the official FAA numbers are 1.4 Vso on base and 1.3 on final, I like to keep best glide until I'm sure I have it made, then drop more flaps and slow down.
This is one of the few maneuvers I really nailed on both my commercial and CFI checkride, but I'm convinced it was mostly luck. If you have the option do a bunch of normal or short/soft landings first to get an idea of the wind, do it.
I've heard most stripe/gap sets are 200ft as well.
-Zach