Again I will not accept my own answer
The chance of hitting goes down by a full 1/4 compared to no gap
But 1 gapper is only giving up yyyxx which is one most vulnerable to an over straight
I have started to play suited 1 gappers in any situation I would play a suited connector.
Odds of 2 pair, trips, or flush does not go down. It opens up my range and lets me see more flops. I like to see flops in position for the right price.
Straights don't hit a lot but when they do you can often get paid off by 1 and 2 pair hands. If you have the top end with no pair on the board and no flush draw then you get in with no risk.
I do think you get paid off bigger on 1 gappers to absorb the odds.
Against good players once they know you will play one gappers it is not as much disguised but does not slow me down.
The lowest I play is 65, 75 as you have 3 below not blocked by ace.
I don't like to play KJ, QJ, QT as those are hands that can hit one pair and cost you money. But suited you have a big flush. Also since they do not have 3 open slots above less ways to hit.
Mid not likely to open with mid to low suited connectors as you want players. It is the type of hand that if it hits it is likely the best hand. Late open raise with it to steal the blinds and you still have a lot of outs.
I like calling mid to late. For 4 BB or less. I don't raise with it until I have shown down enough for them to figure it out.
You are going to flop an 8+ outter or 2 pr+ like 20%. And then finish with 2 pr+ like 15%. So you need to make like 20 BB when you hit. Against a premium hand you are 2:1 dog but need to release if not 8+ outter or 2 pr+. You kind of need to take the heat and call up to 3/4 pot. If they start opening for 1 pot then have to give up on suited connectors period. Hopefully you pick up some blind steals also.
In the right spot I think 1 gappers are profitable. Better hand for tournaments.