Do the Harken two speed winches hoist the main halyard faster than the single speed Evo Lewmar winches?

Firstly, it makes sense to understand what the specifications are;

• The stanard base boat specification includes manual Lewmar self tailing sheet winches (4 x cockpit + 1 x mast base).
• There is an option to upgrade these Lewmar winches:
• There is a further option to upgrade all sheet winches to Harken radial two speed self tailing electric winches with a manual mast mase harken manual winch.

Lewmar vs Harken:

The SW1370 main halyard is a 2:1 and the luff on the main is about 17.8 metres long less the car stack. The Lewmar winch runs at a maximum of 14m/min. As the load gets heavier the winch will slow down but that would only for the final 15-20% of hoist (estimated). So by our calculation, the main halyard would take 2.25 to 2.5 minutes to hoist.  For context, the Seawind 1260 is just over a 2 minute hoist by the same calculation...

The Harken winch runs at 39m/min but again it will not be able to do full hoist at that rate. The final 15-20% would need to be run at the much slower speed of 8m/min due to the higher loads. By estimation therefore, a 1370 mainsail halyard hoist with the harken two speed electric winch would be around 1 minute only. 

Also relevant here is sheeting. Sheeting in a spinnaker or screacher at speed will also be much easier and faster with a two speed Harken radial winch set.