openlayers - How to use Mapbox vector tiles as a vector source in OL3, so that labelling will not clip at tile boundaries

I have been able to load and display mapbox vector tiles in OL3 using a vectorTile source and a vectorTile layer. The problem with this approach is that labels will clip at the tile boundaries and that features that extend across multiple tiles get multiple labels. I have increased the guttering around the tiles so that the symbols will not clip, but with potentially large labels, adjusting the guttering will not solve the problem.

I read that vector tiles in GeoJSON format can be used with vector sources, when using a tile loading strategy. Here is my code:

var tileGrid: ol.tilegrid.TileGrid = ol.tilegrid.createXYZ({
            maxZoom: 19

        });

        var vectorSource = new ol.source.Vector({
            format: new ol.format.MVT({
                featureClass: ol.Feature
            }),
            url: function (extent, resolution) {
                var tileCoord = tileGrid.getTileCoordForCoordAndResolution(ol.extent.getCenter(extent), resolution);
                var tileUrl = cadastralTileURL +
                    tileCoord[0].toString() + '/' +

                    tileCoord[1].toString() + '/' +
                    (-tileCoord[2]).toString() + '.pbf';
                return tileUrl;
            }, 
            strategy: ol.loadingstrategy.tile(tileGrid),
            });

        var vectorLayer: ol.layer.Vector = new ol.layer.Vector({
            source: vectorSource,
            style: this.GetCadastralStyleFunction

        });

        var initCenter: [number, number] = ol.proj.fromLonLat([116, -32]);
        var viewOptions: olx.ViewOptions = {
            center: initCenter,
            minZoom: 6,
            maxZoom: 22,
            zoom: 16
        };


        var view: ol.View = new ol.View(viewOptions);
        this.map = new ol.Map({
            layers: [vectorLayer],
            target: 'map',
            view: view
        });

Using the debugger in Chrome I can see the tiles loading properly (the network shows each tile coming down successfully), but nothing shows up on the display. I was hoping to see the polygon features being rendered as whole features, instead of a collection of parts in each tile, and thus getting around the issue of clipped labels.

Can anyone point me in the direction of what I am doing wrong?