Haven't been up there recently though the biggest factor affecting Organ Pipes are the Basuthos, as many will know already. There is heavy traffic on both routes and many new trails have been formed which can make it a little confusing at times. Basuthos on social and shopping visits are very frequently encountered on the Camel route during the day and the smugglers are generally encountered in the late afternoon and at night. Generally the smugglers are not threatening when encountered on the trail, though be on your guard.
Assuming you are not carrying heavy, take about 5-6 hours to ascend either route and about half to two thirds of the time to descend, though this is very subjective.
For the Thuthumi route, take the route up the grassy spur after the old forestry station (around junction C10) - if KZN Wildlife are driving you to the top of Mikes Pass, you may be able to persuade them to take you all the way to C10 since this section is a restricted jeep track (which extends beyond The Neck). This route has become more prominent in recent years and saves a significant amount of time than going via The Neck. There are many confusing trails around here, generally aimed at avoiding the lookout hut (the smugglers trying to avoid the army camping there). There are also paths connecting to the Thuthumi Pass trail since the smugglers combine different sections of the routes depending on where they are coming from and going to, and if the army is at the lookout hut. Spot the lookout hut from the forestry station and take the most direct and clearest trail to it. From the hut it's a little less confusing, following the ridge to the base of the Organ Pipes, contour around to the final rocky gulley to the top. Don't be confused by trails branching off and crossing over the ridge...the most prominent is near the base of the Organ Pipes at S29 00.635 E29 11.824 (WGS84).
Water should not be much of a problem at this time of year and there have been good rains. There will be water between Mikes Pass and the beginning of the ascent to the hut. Last time I was at the hut the rain water tank had collapsed so don't rely on there being water here (the army may have fixed it). The ridge section is likely to be dry, though with heavy rains water could be oozing out everywhere. From the base of the Organ Pipes onwards you are likely to encounter water again. I've even found water in the dry season near the final gulley.
The Camel route has less confusing trail variations. It's pretty straightforward from the hotel, passed Doreen Falls and on to the contour path at Junction C8 - water also being available. The trail is pretty good climbing up to the Camel, the only significant junction being at S28 59.604 E29 11.539 (WGS84), which is a shortcut to junction C9 and only important if you are going/coming from Mikes Pass or Tryme Hill. Water will be less plentiful on this section. There will be small streams again along the section that is marked with the thick pink line on the map, above the Camel. The trail does also get washed away on this section and there are tricky bits (2-3 meters at a time) where the trail ceases to exist on very exposed slopes. These are extra tricky when it's wet!
The Camel route joins the Thuthumi route just below the top in the rocky gulley section at S29 00.623 E29 11.089 (WGS84). Don't miss this one!
Enjoy and let us know how it went.