standoff is a subjective term in the Pakistani scenario where we lack decent sam coverage for the armored columns on the move it is a standoff weapon. fm 90 has rage of 15 km and altitude envelope of 49–19,685 ft.while cbu 105 can be dropped form 40,000ft at the range of around 19 km.i am not saying that it will be a walk in the park for jaguars but a single successful attack by few jags can be as deadly as tactical nukes for our armored columns
have a look at this article
The SFW is operationally effective when employed at low altitude using level or shallow angle dive deliveries. The weapon is most effective when employed at low altitude from level flight attitudes in a non-countermeasured environment. Due to TMD performance limitations, the current SFW weapon configuration provides the user a limited range of tactical employment options. Weapon effectiveness decreases as release altitude, dive angle, and/or time of flight increases because of adverse effects of wind conditions, weapon dispersion, and aim point uncertainties on delivery accuracy. This performance degradation is an inherent characteristic of all inventory TMD weapons. Due to these TMD accuracy limitations, the USAF Air Combat Command plans to outfit SFW with Wind Corrected Munitions Dispenser (WCMD) tail kit. The SFW's delivery envelope will be expanded to include strategic aircraft and higher altitudes through incorporation of the WCMD. The SFW with WCMD is designated CBU-105.
CBU-97 SFW can be delivered in all weather conditions, day or night, from altitudes of 200 to 20,000 feet, and at speeds up to 650 knots. By incorporating Lockheed Martin's Wind Corrected Munition Dispenser (WCMD) tail kit on SFW, which then redesignated SFW as a CBU-105, the delivery altitude increases up to 40,000 feet and standoff ranges up to 12 miles can be achieved. Use of the WCMD tail kit requires the host aircraft to be MIL-STD-1760 compliant and have the CBU-105 operational flight program software resident in the weapon's control system.
http://www.globalsecurity.org/military/systems/munitions/cbu-105.htm