Agree with the other posts, plus, rationalizing the factors that might make dives in Saba a bit intimidating to newbies:
1. fear of currents - in all my trips to Saba, seldom encountered any, so generally speaking, this is a non-issue.
I just recall one instance at Tent Reef (shallow dive) where there was some near the surface, but as long as the divers descend and ascend using the mooring line, it's not too bad. Besides, at least with Saba Deep, (my guess is that the other outfits do too) the DM always drops a weighted line into the water and checks the current before settling on a chosen site and will change dive sites if it is too strong.
2. fear of depth - indeed what I consider the choicest dives in Saba (which are the pinnacles) are all deeper than 60 feet. There are 5 deep pinnacles that I know of that can typically done as first dives: Outer Limits, Twilight Zone, Third Encounter, Mt. Michel, and Shark Shoals. (Just as an aside, if given a choice, definitely go for Third Encounter and Shark Shoals - my favorites). The shallowest of these is about 90 feet, so hovering at 60 ft. while the other divers are further below would be a waste, in my opinion.
There are other sites - both pinnacle and wall - that are more suitable for this type of multi-level scheme. Diamond Rock and Man'o'War Shoals are both excellent pinnacle dives (they are side by side, next to each other) that would be great for this, with the bottom being at around 75-80 feet. The top of Diamond rock is above the surface, which Man'o'War Shoals is completely submerged with the top at maybe 15-20 ft(?).
One possible suggestion might be to have the so-called "newbies" skip the first dive on the first dive day, go for the second dive and get the acclimated to the depth, and then let them go for the deep pinnacles on the next day (or on a later day) when they feel more comfy going deeper. I myself am only an Open Water diver but the dive operators in Saba have never stopped me from doing the deeper dives.
3. fear of rough seas - most of the diving in Saba is done on the western coast of the island, which, on most days, is the sheltered side. Dives on the east side (the windward side) are only done on good days.
The dive sites on the west side that are close to shore are usually very calm even on windy days because the mountains provide good shelter. Diamond Rock and Man'o'War Shoals are on the northwest, so they can get a bit choppy when it gets real windy because the wind curls around. The deeper pinnacles, because they are a little bit further offshore and receive less protection from the mountains, are vulnerable to strong winds and therefore rougher conditions. As an aside, rough surface conditions don't necessarily translate into lousy u/w conditions - it only makes for a bumpier and wetter ride, and tougher to get back into the boat.
What weather conditions you will encounter if and when you go in the Spring is anyone's guess and is ultimately a matter of luck, but on average, I'd say that I've encountered more instances of calm to moderate than of rough conditions in Saba.
Bottom line is that I think that Saba is very doable by newbies based on the rationale above, but if you want a dive destination that is 99.9% newbie-doable, I'd suggest somewhere like Bonaire instead.
