Weight: 4.3g
Right Spin:
One of the most violent Attack Rings of the entire generation, at least on par with Dragon Breaker + Screw Zeus in terms of power, and more effective against Circle Survivor Defense due to the lack of an overhang, but also more prone to wildly flying backwards out of the stadium from recoil.
Large, well exposed primary contact points combined with spikes along edges make for consistent hard hits.
Does suffer from significant recoil, meaning some caution is required when using it even on combinations with good recoil handling ability.
Good but not excessive reach means it works well on bases of all heights, including the rather tall Defense Grip Base (Attack Mode), where it can reach low enough to hit relatively low Defense/Compact combinations without suffering from the destabilization/movement interruption of wider Attack Rings such as Corona Saber.
Definitely competitive, but a relatively risky choice.
Left Spin:
Somewhat recoil-prone and generally not particularly powerful (at least not enough to justify its recoil) due to a lack of significant contact points.
Not worth using in this direction.
Weight: 14.0g (Takara/Hasbro) | 14.3g (SonoKong G-Blade)
Moderately light weight
Outward weight distribution, though less so than Wide Defense and Wide Survivor.
Recoil means it is far less effective for spin stealing and survival than those weight disks
Still has plenty of use for Smash Attack, particularly with Attack Rings which are obstructed by Wide Defense.
Can still be used for spin stealing to decent effect with parts that compensate through LAD (Spiral Change Base/Full Auto Clutch Base etc) or by providing a buffer (Dragon Saucer SAR), but is still outclassed.
A number of SonoKong Ten Wide WD's from their G-Blade series have been recorded as being slightly above the average weight of Wide Defense, see the Ten Wide page for details.
Weight: 6.7g
A regular right-spin Engine Gear that uses Customize Engine Weights
The engine gear gimmick does very little of use - if it activates early it breaks flower pattern and sometimes self-KO's, if it activates late it causes major instability in most cases, and in the case of Attack Types where it can cause a late game burst of movement (albeit usually an ineffectual one), it lacks a suitable tip to work with.
You're usually better off not winding the SG, rendering it an excessively tall combo, prone to attacks from lower attackers and struggling to hit anything without using an overhanging AR such as Triple Tiger.
Sadly, the only rubber tipped CEW, Metal Grip, is quite slow without the speed of Left Engine Gear (Turbo), and the only Engine Gear tip that was actually decent for Attack, Right Engine Gear (Metal Flat), was never made into a CEW, rendering any offensive usage moot.
Weight: 7.3g
Two tiny metal balls in the clutch tabs do relatively little to add to weight or defensive ability.
In fact, Final Clutch base (Draciel G Version) is actually the lightest Final Clutch Base (the heaviest being Final Clutch Base (Dranzer G Version))
Final Clutch does occasionally cause a late battle offensive push with flat tips, but generally the Beyblade is too low on rotational energy at this point to do anything of note, and with ARs that might help this such as Square Edge not being effective on such tall setups, this is generally ineffectual.
Nonetheless, this does make them more effective than First Clutch Bases. However, Normal Bases tend to be better simply for being less bulky, even though they generally don't make use of the Engine Gear mechanic.
Usable for Circle Survivor Defense, however Normal Base (Wolborg 4 Version), Normal Base (Rock Bison Version) and Final Clutch Base (Desert Sphinxer Version) all work better, all having lower recoil, and the latter being heavier. It is nonetheless the next best choice and the only other truly viably option.
Limited LAD with a poor weight distribution means that it isn't useful with other combinations.
Generally not useful.
Weight: 3.7g
Rather poor balance due to tall height and ball tip
Tends to skip over the tornado ridge too easily, resulting in limited defensive ability
While a niche use, it does allow Gyro Engine Gear to self right quite effectively, making it an acceptable CEW for the part.
Despite being the heaviest regular CEW, Circle Defenser and Circle Survivor both weight more, and the latter is more useful in every way. In addition, only Circle Survivor can produce a Base + SG setup capable of rivalling the weight of Heavy Metal Core-compatible Weight Based Defense setups.
Overall, not a useful part.
Overall
Double Attacker is an excellent Attack Ring and provides Orthros G with some value despite the lack of the excellent Twin Guard SP of the Beyblade it is based on. Nonetheless, the high price and availability of alternatives means that Orthros G is generally only worth buying for collection purposes.