In the studio I use a set of 5 Bowens studio strobe lights.. I sometimes share my model shoots with other photographers. So for this purpose I use the cheapest trigger and recievers available.

https://www.amazon.co.uk/PT-16GY-Channels-Wireless-Speedlite-Universal-black/dp/...=sr_1_1?ie=UTF8&qid=1535398361&sr=8-1&keywords=wansen

They are just manual triggers and very basic, as they have to adapt to the different brand of camera's that are brought along.. They will only trigger the flash. They wont make any power alterations, from camera. They are so cheap I put a receiver to each light as I dont particularly trust the sync capability.
I have been using them for 5 years now, with my K7, K5ii and more recently K1, and never had any issues..!!

Chrism8 advice is a solid one and just slightly drop your shutter speed from the max..
I would also recommend the Yongnuo RF-603 trigger/receivers If you dont particularly want the very cheapest.. Though I dont really see why the skyport trigger would cause an issue as its only a single pin trigger..

Is it your photoshoot that you have arranged for yourself. Or a group shoot at a studio. If its a group shoot. The few I have attended I have found that the organisers set up a fairly standard lighting set up. The models seemed to be very professional and did all the posing. To a point where I have to stop the to get my own interpretion on the images that I wanted. You definately need to collate any ideas you have together. So as to make it easier to relate them to the model. I personally print out similar looking images, to my ideas I have found from the internet. Flickr, 500px and the like. As it's far easier to show a picture than to describe the look you want, to the model. Or these days I use a Kindle / Tablet. Talk to the model as your photograghing them. Dont make it a cold affair. The facial expressions and body language of the subject will be a lot more receptive in the finished photograph.

These are just my thoughts. Have a great shoot. Look forward to seeing some of the results....

Great performance from photographer, camera and lens...

Great news, if you havnt already invested in a lighting system.. Certainly makes the Godox AD200 and AD600 exeptional buys now for Pentax users. Im not sure it will totally see off the Cactus V6ii... But at least we wont have to stack the triggers anymore..

Excellent images

Never had a limited lens... Are they that much better than zooms ? My 24-70mm will take some beating... On my K1. its not light. But neither is a bag full of primes. With all that lens swapping.
Open to being convinced..

Great set Bill. gives us all encouragement..

Here here...

Great images Carmagw... Really putting the K1ii through its sporting paces...

I'd hang my cap on number 12 too....

Lovely images. Admired them all...

This is not rambling at all Rob..!! For Pentax users it is an issue I feel.. I am in the process of setting up a Landscape kit myself. But I'm having similar issues .. Though in the really wide angle lens dept. I havint yet made the purchase. After looking at cheaper Samyang and Irix offerings.. I had decided it was better to bite the bullet and fork out for the 15-30. As i thought at the end of the day it would return better images overall and was auto focus.. (Well its only money....lol) But I too have concerns over the weight issue and carrying it all day.
Personally, I use the Kase range of glass filters. (82mm and 100 x 150) So getting the 15-30 would also mean more expense in the 150mm lens filter conversion and larger filters.. (About a further £500. My present 82mm ND filters wont fit )
I own the Pentax 24-70 and the 70-200.. But usually leave the 70-200 behind in favour of the 55-300.. Usually find speed isnt an issue and a little editing in photoshop usually keeps the images from the K1 satisfactory.
Maybe its cheaper to buy a KP and use the Sigma 10-20 I aleady own..!!

I also have tripod issue's..!! And ask the more experienced landscapers for advice on this issue.. Years ago when I made my tridod purchase. I plumped for the Manfrotto 055. It great n sturdy but too large and heavy to strap to a bag..!! I thought I'd try carbon but hear you have to weight these down at arrival to stop wind vibration..? I could use some suggestions in this dept.. Though lets not hijack Rob's thread..