Apple Triathlon is the Canadian National Championships for next 2 years.
I am racing the Olympic Distance Triathlon and it is likely a non wetsuit legal swim in Lake Okanagan ie. >22C (71F)
Race rules (ITU?) states that if you wear a swimskin in the swim, you cannot take it off in T1 (which I had never heard before bc in Ironman branded races I've done you can take it off).

As I am an average adult onset swimmer (26:30 1.5k wetsuit pb), to reduce drag I would rather wear my Blue Seventy PZ3TX Swim Skin only instead of my One Piece Trisuit.

I have a very strong bike and run (5th in 45-49 at 2017 ITU World Duathlon Standard distance).

I have worn both suits in the pool each with a 5 x 100m time trial test and found:
Trisuit 1:40/100m
Swimskin 1:36/100m

Those 4 seconds = 1 minute faster with Swimskin over 1500m

The Swimskin is much tighter than the Trisuit and I would think would even be more aero on the bike.
The only issue is no chamois in the Swimskin.
I did try the Swimskin in a Sprint race last weekend and it worked fine on the bike and run (actually had 3rd fastest bike overall, 12th overall and won age group).

My goal at Nationals is to win my 45-49 age group again (last 2 years, I have finished 1st (no swim that year) and 2nd (wetsuit swim))

Bottom line, any issues with wearing the Swinskin for the Olympic distance Nationals?

Thanks for any helpful advice!