Hello Paul,
Unlike you, I have so far no experience of Model Slip[way ktzs sointerested in your comment on yours. I have however built both the Caldercraft ‘Sir Kay’ and the Mountfleet ‘Highlander’ as well as Artesania Latina ‘Hellen’ and the Panart ‘Anteo’.
I think a lot depends on what you lile to do modelling. The Anteo is a splendid kit if you like tobuild the hull as well in wood planking on frames. Quality of bits was excellent although the detail on the plans sometimes seemd to vary from sheet to sheet (8 of them in total!!) Hellen was more semi scale but quality was good. Interestingly, these continental kits had a fair number of fittings made in brass.
All this is by the way to your particular shortlist.
The Caldercraft kit hull was good and parts made up into a model of which I am pleased. However I did find the white metal fittings made froma very sorft alloy and were easily bent out of shape (but conversely could be usually returned to shape ) and Jotika were very good at supplying missing bits. There is info on these Round Table minesweepers of which Sir Lancelot is another in the War Museums etc.
The Mountfleet kit was purchased at a time when Frank was nearing the end of his life and I have to say that the hull left alot to be desiredand I think quality control hadbeen allowed to slip a bit as a result . Thismay well have been remedied now by the ladies in charge. However, remedying the inaccuracy of the hull myself moulding with resin and glass fibre resulted in model being made. The drawings left a fair bit to God and guesswork which was an interesting challenge on occasion but again using other sources of info, I am pleased with end result. The ladies at Mountfleet were at all times extremely helpful and missing bits were quickly sent. White metal fittings were reasonable and coukld be cleaned up well..
A long spiel but hope helpful. Enjoy your modelling
Richard